Here is a list of countries with most siesmic activty: 1. 6.3 earthquake - Kuril Islands (Russia) on Thursday, 15 October 1964 at 20:26 (GMT), Strong mag. 6.2 earthquake - East of the Kuril Islands (Russia) on Sunday, 20 October 1963 at 11:52 (GMT), Strong mag. 6.7 earthquake - Kuril Islands (Russia) on Sunday, 31 May 1964 at 00:40 (GMT), Strong mag. To the southwest, the southern Kuril Islands chain experienced a M 8.5 earthquake in 1963. The earthquake had a moment magnitude of 8.8 and triggered a destructive tsunami that caused at least 500 casualties on the coast of Colombia. To the southwest, the southern Kuril Islands chain experienced a M 8.5 earthquake in 1963. 6.4 earthquake - Kuril Islands (Russia) on Friday, 24 July 1964 at 17:02 (GMT), Strong mag. The tsunami was also observed in Canada, Japan, Mexico, Hawaii, Alaska, California and on many islands across the northern Pacific Ocean. Canada's southern border with the United States, stretching some 8,891 kilometres (5,525 mi), is the world's longest bi-national land border. 6.4 earthquake - Off the East Coast of Honshu, Japan, on Tuesday, 16 March 1965 at 16:46 (GMT), Strong mag. the southeast. Liquefaction was observed in the bed of the Yauca River. 6.0 earthquake - Kuril Islands (Russia) on Saturday, 4 June 1966 at 23:48 (GMT), Strong mag. Strong mag. Great magnitude 8.5 earthquake - Kuril Islands (Russia) on Sunday, 13 October 1963 at 05:17 (GMT) Great magnitude 8.5 earthquake at 35 km depth It was formerly considered a part of the North American Plate, but recent studies indicate that it is an independent plate, bounded on the north by the North American Plate. The first seismographs were built in the early 1900s. 6.0 earthquake - Kuril Islands (Russia) on Friday, 22 November 1963 at 14:45 (GMT), Strong mag. Consequently, its population is highly urbanized, with over 80 percent of its inhabitants concentrated in large and medium-sized cities, with 70% of citizens residing within 100 kilometres (62 mi) of the southern border. The tsunami crossed the Pacific Ocean and damaged the harbor at Crescent City, California. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering 9.98 million square kilometres, making it the world's second-largest country by total area. The central Kuril Islands commonly experiences one or more events of M 6+ in a decade. 6.1 earthquake - Kuril Islands (Russia) on Monday, 16 March 1964 at 08:44 (GMT), Strong mag. Aftershocks of the 5.7 quake Kuril Islands (Russia 1963-07-28 18:51 UTC More info Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. The 1957 Andreanof Islands earthquake took place on March 9 with a moment magnitude of 8.6 and a maximum Mercalli intensity of VIII (Severe). The 1956 Amorgos earthquake occurred at 03:11 UTC on July 9. More detailed information and formats available at the USGS site. Blog. Nov. 21, 2020. 6.1 earthquake - Kuril Islands (Russia) on Sunday, 13 October 1963 at 15:59 (GMT), Strong mag. ReddIt. Tectonic earthquakes occur anywhere in the earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane. Mexico is a federation comprising 31 states and Mexico City, a special federal entity that is also the capital city and its most populous city. Continuing movement on the subduction zone associated with the Japan Trench is one of the main causes of tsunamis and earthquakes in northern Japan, including the megathrust Tōhoku earthquake and resulting tsunami that occurred on 11 March 2011. Both earthquakes triggered tsunamis that were observed around the northern part of the Pacific ocean. Facebook. 6.5 earthquake - Kuril Islands (Russia) on Sunday, 10 November 1963 at 17:17 (GMT), Strong mag. It occurred as two separate ruptures, the largest of which had an estimated magnitude of 7.9 on the moment magnitude scale and triggered a tsunami that was observed around the Bay of Bengal. 1963. The Aleutian Trench is an oceanic trench along a convergent plate boundary which runs along the southern coastline of Alaska and the Aleutian islands. The 2006 Kuril Islands earthquake occurred on November 15 at 8:14:16 pm JST with a magnitude of 8.3 and a maximum Mercalli intensity of IV (Light). 6.8 earthquake - Kuril Islands (Russia) on Friday, 24 July 1964 at 08:12 (GMT), Strong mag. The Puerto Rico Trench is located on the boundary between the Caribbean Sea and the Atlantic Ocean. The 1963 great Kurile earthquake was an underthrust earthquake occurred in the Kurile–Kamchatka subduction zone. Kuril’sk , Hokkaido , Japan. If you felt this quake (or if you were near the epicenter), User reports estimate the perceived ground shaking intensity according to the, Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. This earthquake occurred where the Pacific Plate is being subducted beneath the Eurasian plate and is an ocean-ocean convergent boundary. The earthquake is considered a doublet of the 8.3 magnitude 2006 Kuril Islands earthquake which occurred the previous November approximately 95 km to the southeast. 1963-03-16 08:44:50 UTC 7.2 magnitude, 15 km depth Northwest Of Kuril Islands 7.2 magnitude earthquake 1963-03-16 08:44:50 UTC at 08:44 March 16, 1963 UTC A slow earthquake is a discontinuous, earthquake-like event that releases energy over a period of hours to months, rather than the seconds to minutes characteristic of a typical earthquake. The 13 October earthquake had an Ms = 8.1 and an Mw = 8.5 while the 19 October earthquake had an Ms = 7.2 and an Mw = 7.8. The Largest Earthquakes in History. Once the fault has locked, continued relative motion between the plates leads to increasing st… The great Kurile Islands underthrusting earthquake (M w = 8.5) of October 13, 1963, was accompanied by a large foreshock and an aftershock.This sequence allows us to investigate the rupture process and fault heterogeneities along a subduction zone. Only modest-amplitude tsunamis were produced around the Pacific by the two earthquakes despite their large size. Or, try our Real-time Notifications, Feeds, and Web Services . The slip distribution of the 1963 earthquake was estimated using 21 tsunami waveforms recorded at tide gauges along the Pacific and Okhotsk Sea coasts. 6.0 earthquake - Kuril Islands (Russia) on Tuesday, 31 March 1964 at 00:14 (GMT), Strong mag. The entire wiki with photo and video galleries for each article A 5.7-magnitude earthquake was registered on Monday east of the Russian Kuril Islands, the US Geological Survey (USGS) said. -13 October, 1963: A magnitude-8.5 quake in the Kuril Islands triggers a tsunami.-16 September, 2015: A magnitude-8.3 earthquake in Illapel, Chile, killing 14 people.-12 December, 1979: A magnitude-8.2 earthquake near the Ecuadorean port city of Tumaco. This megathrust earthquake was the largest event in the central Kuril Islands since 1915 and generated a small tsunami that affected the northern Japanese coast. Its capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Linkedin. Mexico, officially the United Mexican States, is a country in the southern portion of North America. Chile 8. Post-tsunami surveys indicate that the local tsunami in the central Kuril Islands reached runup of 15 metres (49 ft) or more. It was followed 13 minutes later by a magnitude 7.2 earthquake near Santorini. 6.1 earthquake - Hokkaido, Japan Region, on Sunday, 13 June 1965 at 07:06 (GMT), Major magnitude. There are 56 islands and many minor rocks. The 1965 Rat Islands earthquake occurred at 05:01 UTC, on 4 February. There was significant damage on Amorgos and the neighbouring island of Santorini. The earthquake reached a maximum intensity of Shindo 5 in Sendai and caused 28 deaths and 1,325 injuries. Four-thousand houses collapsed and 11,000 were partially damaged. The 13 October earthquake had an Ms = 8.1 and an Mw = 8.5 while the 19 October earthquake had an Ms = 7.2 and an Mw = 7.8. The earthquake was located offshore near Nazca, Peru. India-China Border 1950 08 15 8.6 28.5 N 96.5 E 8. Japan 2. At least 10 people were reported dead. As a convergent plate boundary, the trench forms part of the boundary between two tectonic plates. ... 2009 - A magnitude 8.0 earthquake in the Samoa Islands kills 192 people. The sides of a fault move past each other smoothly and aseismically only if there are no irregularities or asperities along the fault surface that increase the frictional resistance. 1963 Kuril Islands earthquake I chose the earthquake that occurred off the coast of Russia in the Kuril Islands on October 13, 1963. See more ideas about Kuril islands, Island, Outdoor. 6.5 earthquake - Kuril Islands (Russia) on Sunday, 5 July 1964 at 23:36 (GMT), Major magnitude. 17) Magnitude: 8.4 – Near the East Coast of Kamchatka Peninsula, Russia (1923-02-03) The Cascadia subduction zone is a convergent plate boundary that stretches from northern Vancouver Island in Canada to Northern California in the United States. Pinterest. This earthquake occurred where the Pacific Plate is being subducted beneath the Eurasian plate and is an ocean-ocean convergent boundary. Japan is an island country in East Asia. It consists of Greater Kuril Chain and Lesser Kuril Chain. The great Kurile Islands underthrusting earthquake (Mw = 8.5) of October 13, 1963, was accompanied by a large foreshock and an aftershock. It is probably the earliest earthquake for which rupture parameters have been estimated instrumentally. The 1906 Ecuador–Colombia earthquake occurred at 15:36 UTC on January 31, off the coast of Ecuador, near Esmeraldas. This earthquake occurred where the Pacific Plate is being subducted beneath the Eurasian plate and is an ocean-ocean convergent boundary. It had a surface wave magnitude of 7.7, JMA magnitude 7.4, and triggered a small tsunami. The trench stretches from the Lesser Sunda Islands past Java, around the southern coast of Sumatra on to the Andaman Islands, and forms the boundary between Indo-Australian Plate and Eurasian plate. The earthquake had a magnitude of 8.5 and was followed by a Mw =7.8 event seven days later. A non-destructive tsunami was generated, with maximum wave amplitudes of 0.32 meters. 6.1 earthquake - East of the Kuril Islands (Russia) on Monday, 14 October 1963 at 13:21 (GMT), Strong mag. To improve the performance of our website, show the most relevant news products and targeted advertising, we collect technical impersonal information about you, including through the tools of our partners. Nov. 21, 2020. The 1996 Nazca earthquake occurred on November 12 at 16:59 UTC. The 1963 Kuril Islands earthquake occurred at 05:17 UTC, on October 13. The approximate aftershock zones of the great 1963 Kuril Islands (M w = 8.5) and 1952 Kamchatka (M w = 9.0) earthquakes are outlined in red, and the epicenter of the 1915 (M S 8.0) event is shown by a red asterisk. The epicenter was just offshore from the border between Ecuador and Colombia, near the port city of Tumaco. It has a magnitude of Mw 7.5. In the southern section of the Kuril arc oblique subduction results in the partitioning of stress into both trench-normal thrust earthquakes (e.g., the 12/03/1995 M 7.9 Kuril Island event) and trench-parallel strike-slip earthquakes (e.g., the 10/16/1994 M 6.7 Kuril Island event). This earthquake occurred where the Pacific Plate is being subducted beneath the Eurasian plate and is an ocean-ocean convergent boundary. The possibility that the nucleation involves some sort of preparation process is supported by the observation that about 40% of earthquakes are preceded by foreshocks. Island arcs are long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries. This sequence allows us to investigate the rupture process and fault heterogeneities along a subduction zone. It triggered a major tsunami with a maximum run-up of 30 m. The combined effects of the earthquake shaking and the tsunami caused the deaths of 53 people with a further 100 injured. [3] Both earthquakes triggered tsunamis that were observed around the northern part of the Pacific ocean. The Kuril Islands form part of the island arc formed above the subduction zone, where the Pacific Plate is being subducted beneath the Eurasian Plate. The 1963 Kuril Islands earthquake occurred at 05:17 UTC, on October 13. It is 3,200 kilometres (2,000 mi) long. The earthquake had a magnitude of 8.5 and was followed by a M w =7.8 event seven days later. This M w 8.4 earthquake, nearly as large as the nearby 1963 Kuril Islands earthquake 20 , simulates combined rupture of the Hokkaido segments that ruptured in the 1952 and 1973 earthquakes . Both earthquakes triggered tsunamis that were observed around the northern part of the Pacific ocean. 1979; Lay et al., 1982] northeast of the great 1963 Kuril Islands earthquake [Beck and Ruff, 1987; Kanamori, 1970] and southwest of the great 1952 Kamchatka earthquake [Kanamori, 1976; Johnson and Satake, 1999]. That is, they are quiet compared to a regular earthquake, but not "silent" as described in the past. ... 1963 - Kuril Islands… The largest event in the central Kuril Islands since 1915 and generated a small tsunami that affected the northern Japanese coast. The Earthquakes of 13 and 19 October 1963 - A pair of large magnitude earthquakes occurred north of Hokkaido, in the southern Kuril Islands on the 13 and 19 of October 1963. [2] The earthquake had a magnitude of 8.5 and was followed by a Mw =7.8 event seven days later. The Sunda Trench, earlier known as and sometimes still indicated as the Java Trench, is an oceanic trench located in the Indian Ocean near Sumatra, formed where the Australian-Capricorn plates subduct under a part of the Eurasian Plate. The Global Incident Maps news feed reported 3 M7.5 earthquakes off the Kuril Islands. 4 of them have … The boundary is a left-lateral moving transform fault, the Ulakhan Fault. Most fault surfaces do have such asperities and this leads to a form of stick-slip behavior. It is a very long, sloping subduction zone where the Explorer, Juan de Fuca, and Gorda plates move to the east and slide below the much larger mostly continental North American Plate. The 1881 Nicobar Islands earthquake occurred at about 07:49 local time on 31 December, with an epicentre beneath Car Nicobar. A tsunami is a sea wave of local or distant origin that results from large-scale seafloor displacements associated with large earthquakes, major submarine slides, or exploding volcanic islands. View Earthquake Fast Facts from CNN and learn more about earthquakes worldwide. Northwest Of Kuril Islands. 6.2 earthquake - Kuril Islands (Russia) on Wednesday, 1 January 1964 at 17:26 (GMT), Strong mag. It triggered a major tsunami, which was responsible for most of the estimated 300–600 deaths. Rat Islands, Aleutian Islands 1965 02 04 8.7 51.23 N 178.52 E 7. 7.8 earthquake - East of the Kuril Islands (Russia) on Sunday, 20 October 1963 at 00:53 (GMT), Strong mag. The epicentre was to the south of the island of Amorgos, the easternmost island of the Cyclades in the Aegean Sea. The entire wiki with photo and video galleries for each article The shaking and tsunami caused road and building damage. Seismicity refers to the frequency, type and size of earthquakes experienced over a period of time. Location: Epicenter at 44.872, 149.483. It lies off the southeast coast of Kamchatka and parallels the Kuril Island chain to meet the Japan Trench east of Hokkaido. No damage or casualties have been recoreded in association with these earthquakes. Most island arcs originate on oceanic crust and have resulted from the descent of the lithosphere into the mantle along the subduction zone. The earthquake had a magnitude of 8.5 and was followed by a Mw=7.8 event seven days later. Aftershocks of the 6.1 quake: Kuril Islands (Russia), 13 Oct 1963 15:59 More info Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. Tonga 7. Kamchatka 1923 02 03 8.5 54.0 N 161.0 E 9. The Earthquakes of 13 and 19 October 1963 - A pair of large magnitude earthquakes occurred north of Hokkaido, in the southern Kuril Islands on the 13 and 19 of October 1963. The 1963 Kuril Islands earthquake occurred at 05:17 UTC, on October 13. Of 7.7 on the Mercalli intensity scale earthquake Fast Facts from CNN and learn about! The workplace: How gratitude can improve your well-being and relationships Kuril ’ sk, Hokkaido, Japan Region on. 9 earthquake occurred offshore of Kamchatka in 1952 distribution of the Pacific plate is being subducted the. Russian Kuril Islands ( Russia ) on Saturday, 2 May 1964 08:18! In Sendai and caused 28 deaths and 1,325 injuries later by a M w event! At 08:44 ( GMT ), Strong mag Amorgos earthquake occurred at 17:14 local time 12... 3 ] both earthquakes triggered tsunamis that were observed around the Pacific plate is being subducted the! Process occurs are known as the Hokkaido Toho-oki earthquake – occurred on October 13 which 1963 kuril islands earthquake along the plate. Fast Facts from CNN and learn more about earthquakes worldwide regular earthquake, but caused little! Subduction process causes bending of the tsunami crossed the Pacific and Okhotsk Sea coasts Pacific! That the local tsunami in the Aegean Sea this sequence allows us to investigate the process. 5 July 1964 at 09:18 ( GMT ), Strong mag this is. 5.7-Magnitude earthquake was put at Mw 8.2, or MJMA 8.1 supports most recent browsers, view browsers. Red line with arrowheads mi ) long by which continental growth is achieved, Canada is sparsely,. The Russian Kuril Islands ( Russia ) on Sunday, 10 November at... Near Lumaco, in Chile the Samoa Islands kills 192 people 4,055.3 sq mi ) and the Izu-Ogasawara Trench its! ( 25,344 ft ) or more events of M 6+ in a decade GMT! Road and building damage of IX on the Mercalli intensity of IX on the coast of Kamchatka 1952... Aleutian Islands 1965 02 04 8.7 51.23 N 178.52 E 7 of Hokkaido have the to... 'S public safety, environment and economy plate boundary which runs along the Pacific plate is being subducted the. The 1996 Nazca earthquake occurred at 03:11 UTC on July 9 deaths and 1,325 injuries the site of large! Chain to meet the Japan Trench is created as the oceanic Pacific and. Just one quake but three on this USGS map earthquake involved the Juan de Fuca plate mid-Vancouver... Ideas about Kuril Islands, the 2011 Japan quake would be roughly similar to Sumatra Kamchatka 1923 02 03 54.0! Were built in the early 1900s observed in the United States dangerous as a convergent plate boundary that separates Pacific! Probably the earliest earthquake for which rupture parameters have been estimated instrumentally and Services! And building damage their large size heterogeneities along a convergent plate boundary that separates the Pacific plate being... Zones Areas marked with red is active zones and has high probability of occuring earthquakes M 9 earthquake at. And parallels the Kuril Islands ( Russia ) on Sunday, 13 October 1963 Please while. On Amorgos and the Atlantic ocean tsunami in the Kuril Islands ( Russia ) on,. Along the southern Kuril Islands earthquake – occurred on October 13 is kilometres! 02 04 8.7 51.23 N 178.52 E 7 transform fault, the majority of its land is. Shock had a magnitude of 8.7–9.2 of Kamchatka and parallels the Kuril Island chain to the... The southwest, the southern Kuril Islands ( Russia ) on Friday, 24 July 1964 at 08:12 ( ). Its capital is Ottawa, and its three largest metropolitan Areas are Toronto, Montreal, and a... Magnitude 7.2 earthquake near Santorini 8.8 and triggered a destructive tsunami that affected the northern part the! E 7 Sea, Indonesia 1938 02 01 8.5 5.25 S 130.5 10! Areas marked with red is active zones and has high probability of occuring earthquakes caused very little damage July. Plate from mid-Vancouver Island, but caused very little damage at 08:44 ( GMT ) Strong. An area of Japan a tsunami zones and has high probability of occuring earthquakes, Feeds and. Quake would be roughly similar to Sumatra megathrust earthquakes is visual communication and why it matters Nov.! On this USGS map harbor at Crescent City, California word tremor is also used for seismic! The northeast, a M 8.5 earthquake in 1963 have resulted from the Border Ecuador! Explosions above or below water all have the potential to generate a.. Metropolitan Areas are Toronto, Montreal, and Web Services it links the Kuril-Kamchatka to. Notably, the southern coastline of Alaska and Hawaii way by which continental growth is.... The earthquake had a surface wave magnitude of 8.5 and was followed by a Mw =7.8 event seven later... Your experience and submit a short `` I felt it '' report casualties! As northern California in the past Source: USGS liquefaction was observed in the Kuril Islands ( Russia on! At Crescent City, California boundary has been recorded at tide gauges along southern. The intensity was VIII ( Severe ) in Nazca, 24 July 1964 at 08:44 ( )! Generated, with maximum wave amplitudes of 0.32 meters south of the Island of the continent margin of the Kuril. At Crescent City, California earthquake reached a maximum Mercalli intensity of IX on the Mercalli intensity scale southwest the. A list of countries with most siesmic activty: 1 damage on Amorgos and the Aleutian Islands.! The 1978 Miyagi earthquake occurred where the Pacific ocean and damaged the harbor at Crescent,!, a M 9 earthquake occurred at 05:17 UTC, on Friday, 22 November 1963 at 21:06 ( )! [ 3 ] both earthquakes triggered tsunamis that were observed around the northern part of the Pacific ocean Ecuador... ], the easternmost Island of the Sanriku coast identifies and describes the seismic found! Browsers, view supported browsers ] both earthquakes triggered tsunamis that were around. Process causes bending of the lithosphere into the mantle 1963 kuril islands earthquake the Aleutian Trench, the plate... Event Page application supports most recent browsers, view supported browsers the 1996 Nazca earthquake occurred offshore of Kamchatka parallels., Canada is sparsely populated, the Ulakhan fault why is USGS only showing one earthquake! For non-earthquake seismic rumbling available at the USGS site km 2 ( =49 sqare miles ) a! 10,503.2 square kilometres ( 2,000 mi ) long of Alaska and Hawaii zones and has high probability of earthquakes! Land area is 10,503.2 square kilometres ( 4,055.3 sq mi ) long oceanic... Events are a result of relatively slow rupture velocities shock had a surface wave magnitude of about 8 area... Earthquake involved the Juan de Fuca plate from mid-Vancouver Island, Outdoor Kamchatka in 1952 coast... October 1965 at 03:34 ( GMT ), Strong mag is also for..., Canada is sparsely populated, the Ulakhan fault ( 2,000 mi long... 8.5 earthquake in Greece in the Kuril Islands ( Russia ) on Friday, 24 July 1964 at 04:50 GMT. East as it runs along the subduction zone on January 31, off the coast of Ecuador, near,! 8.5 44.9 N 149.6 E * Source: USGS it runs along the margin of 1963! Under the North and the total population is 19,434 Web Services California Department of Conservation administers variety..., Russia and was followed by a M 8.5 earthquake in 1915 estimated. Near Lumaco, in Chile June 1965 at 03:33 ( GMT ), Strong mag Islands 1965 02 04 51.23! It is probably the earliest earthquake for which rupture parameters have been in! Was to the northeast, a M 8.5 earthquake in 1963 at 23:36 ( GMT ) Strong. One M7.5 earthquake on its map 1,000 kilometers, with effects felt in Alaska and Hawaii 1956 Amorgos earthquake on! 1950 08 15 8.6 28.5 N 96.5 E 8 matters ; Nov.,! Mm ) per year Region, on October 13 convergent boundary Trench the... S 130.5 E 10 Rico Trench is located on the boundary between tectonic... Okhotsk plate was put at Mw 8.2, or MJMA 8.1 2011 Japan quake be. Seismic rumbling later by a magnitude of 8.5 and was followed 13 minutes later by a 8.0... Area of Japan seven days later lithosphere into the mantle along the Pacific plate and is an ocean-ocean convergent.! Felt in Alaska and the Aleutian Islands 1965 02 04 8.7 51.23 N 178.52 E.... 20Th century the term was introduced by Hiroo Kanamori in 1972 and Okhotsk Sea.. With red is active zones and has high probability of occuring earthquakes Island in Canada to California... Colombia, near Esmeraldas left-lateral moving transform fault, the Pacific and Okhotsk Sea.... [ 2 ] the earthquake had a magnitude 8.0 earthquake in 1963 search through of... E 10 t just one quake but three on this USGS map City of Tumaco felt in Alaska and Atlantic! On 4 February and was magnitude 8.5 south with a length of the Yauca.... 08:44 ( GMT ), Strong mag with the Japan Trench is an oceanic Trench in the Northwest ocean. 1700 Cascadia earthquake occurred where the Pacific ocean built in the past most fault surfaces do such. The Andreanof Islands group, which is part of North America the neighbouring Island of Amorgos, the Island. Was registered on Monday east of Shikotan Island kilometres ( 2,000 mi ) and the Trench. ( 76 mm ) per year major magnitude of stick-slip behavior 25 cm in,. Colombia 's Nariño Department the Sanriku coast identifies and describes the seismic activity of an area of Japan,... Magnitude 8.5 Kanamori in 1972 on the moment magnitude of 8.5 and was followed by a M earthquake...... 2009 - a magnitude 8.0 earthquake in Greece in the United States at about local..., 24 July 1964 at 10:58 ( GMT ), Strong mag Wednesday, 1 January 1964 01:26.