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21 May ' 23:41
Earthquake History for May 22nd
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At least 105 people killed and 150 injured in the Aiquile-Totora area. Eighty percent of the buildings at Aiquile and seventy percent at Totora were destroyed. Complex earthquake with at least two larger events occurring about 8 and 12 seconds after the onset. Significant Earthquakes of the World 1998
M6.6 - Bolivia, 1998 -
The city of Bingol was nearly destroyed. The earthquake was located about 410 miles southeast of Ankara. A thousand or more people were killed, 90 percent of Bingol's structures destroyed, and 15,000 of its inhabitants were made homeless. The earthquake occurred at the extreme eastern end of the Anatolian Fault. From Earthquake Information Bulletin, Volume 3, Number 5.
M6.9 - Turkey, 1971 -
1655 deaths. One of the Largest Earthquakes in the World. Severe damage from shaking occurred in the Valdivia-Puerto Montt area. Most of the casualties and much of the damage was because of large tsunamis which caused damage along the coast of Chile from Lebu to Puerto Aisen and in many areas of the Pacific Ocean. Puerto Saavedra was completely destroyed by waves which reached heights of 11.5 m (38 ft) and carried remains of houses inland as much as 3 km (2 mi). Wave heights of 8 m (26 ft) caused much damage at Corral. Tsunamis caused 61 deaths and severe damage in Hawaii, mostly at Hilo, where the runup height reached 10.6 m (35 ft). Waves as high as 5.5 m (18 ft) struck northern Honshu about 1 day after the quake, where it destroyed more than 1600 homes and left 185 people dead or missing. Another 32 people were dead or missing in the Philippines after the tsunami hit those islands. Damage also occurred on Easter Island, in the Samoa Islands and in California. One to 1.5 m (3-5 ft) of subsidence occurred along the Chilean coast from the south end of the Arauco Peninsula to Quellon on Chiloe Island. As much of 3 m (10 ft) of uplift occurred on Isla Guafo. Many landslides occurred in the Chilean Lake District from Lago Villarica to Lago Todos los Santos. On May 24, Volcan Puyehue erupted, sending ash and steam as high as 6,000 m. The eruption continued for several weeks. This quake was preceded by 4 foreshocks bigger than magnitude 7.0, including a magnitude 7.9 on May 21 that caused severe damage in the Concepcion area. Many aftershocks occurred, with 5 of magnitude 7.0 or greater through Nov 1. This is the largest earthquake of the 20th Century. The rupture zone is estimated to be about 1000 km long, from Lebu to Puerto Aisen. Note that the tsunami deaths from outside Chile are included in the 1,655 total. This is still considerably fewer than some estimates which were as high as 5,700. However, Rothe and others state that the initial reports were greatly overestimated. The death toll for this huge earthquake was less than it might have been because it it occurred in the middle of the afternoon, many of the structures had been built to be earthquake-resistant and the series of strong foreshocks had made the population wary.
M9.5 - Chile, 1960 -
More than 40,900 deaths. Extreme damage in the Gulang-Wuwei area. Landslides buried a town near Gulang and dammed a stream in Wuwei County, creating a new lake. Large fissures and sandblows occurred in the area. Damage occurred from Lanzhou through Minqin and Yongchang to Jinta. It was felt at Xi'an and as far as 700 km (440 mi) from the epicenter. This area along the base of the Qilian Shan (formerly named Nan Shan, which is why this is sometimes called the Nan Shan earthquake) was part of the Silk Road connecting China with Central Asia. Some sources list the death toll as high as 200,000, but this may be a confusion with the much-bigger Ningxia quake of 1920. Also, Gu et al. report that over 250,000 livestock were killed by this earthquake.
M7.6 - China, 1927
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21 May ' 16:55
Page Last Modified: October 02, 2012 15:32:40 UTC
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21 May ' 09:27
Page Last Modified: October 02, 2012 15:32:16 UTC
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20 May ' 19:24
Earthquake History for May 21st
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Local time: May 22. At least 38 people killed, more than 1,000 injured, thousands homeless and extensive damage in the Jabalpur area. Felt in much of Madhya Pradesh. Also felt at Allahabad, Delhi, Nagpur and in parts of western Orissa. Two events about 1 second apart. See also: Jabalpur Earthquake of May 22, 1997
M5.8 - India, 1997 -
Several people injured jumping from buildings and slight damage in the southern Shanghai-Rudong area. Felt throughout southern Jiangsu Province and at Hefei. Felt on about 200 fishing boats in the Yellow Sea.
M6.0 - China, 1984
Significant Earthquakes of the World, 1984. -
Some deaths.
M7.9 - Chile, 1960
Some people injured and severe damage in the Lebu-Concepcion area. Most of the damage and casualties occurred in unreinforced masonry buildings that had survived but were likely weakened by the 1939 Chillan quake. A small tsunami was recorded at Talcahuano, Valparaiso and at other places along the coast of Chile, but caused no damage. This is the largest of 4 foreshocks magnitude 7.2 or greater for the magnitude 9.5 Valdivia earthquake on May 22. Most of the damage in Concepcion was due to this foreshock; the mainshock did little additional damage in this area. -
The earthquake caused destruction in Cuzco and San Sebastian. 83 people killed, and 200 injured.
M6.0 - Peru, 1950
From United States Earthquakes, 1950. -
M - Italy, 1850
Giuseppe Mercalli born. Italian volcanologist and seismologist. Inventor of the Mercalli Intensity Scale (1902). The scale assigns an intensity or rating to measure the effects of an earthquake at a particular location.
See: Modified Mercalli Intensity Scale
Page Last Modified: October 02, 2012 15:32:40 UTC
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20 May ' 12:20
Page Last Modified: October 02, 2012 15:32:16 UTC
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19 May ' 17:11
Earthquake History for May 20th
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At least 36 people killed and 100 injured in the Peshawar and Kohat Districts, including 20 people killed at Shakkar Khel. At least 400 houses destroyed in the Kohat District. Felt at Islamabad and Lahore. Also felt in the Srinagar area, Kashmir and in parts of northern India.
M6.3 - Pakistan, 1992
From Significant Earthquakes of the World 1992. -
Some buildings damaged in the Juba area. Also some damage in the Moyo area, Uganda. Felt in the Nakuru area, Kenya and in Uganda. Believed to be the largest earthquake ever recorded in Sudan.
M7.2 - Sudan, 1990
From Significant Earthquakes of the World 1990.
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19 May ' 06:47
Page Last Modified: October 02, 2012 15:32:40 UTC
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18 May ' 20:29
Earthquake History for May 19th
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This earthquake in southern California caused a horizontal land movement that offset part of the international boundary, between the United States and Mexico, a few feet.
M7.1 - California, 1940
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18 May ' 09:45
Page Last Modified: October 02, 2012 15:32:16 UTC
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17 May ' 22:45
Earthquake History for May 18th
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This earthquake occurred only seconds before the explosion which began the eruption of Mount St. Helens volcano. This eruption and blast took 396 meters off the top of Mount St. Helens, killed 31 people, left 33 others missing and caused damage between $500 million and $2 billion U.S. dollars. Felt (V) at Yakima and (IV) in many parts of Washington and Oregon. From Significant Earthquakes of the World, 1980.
M5.0 - Washington, 1980
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