Earthquakes are caused by movements within the Earth's crust and uppermost mantle. They range from weak events detectable only by seismometers, to sudden and violent events lasting many minutes which have caused some of the greatest disasters in human history. Below, earthquakes are listed by period, region or country, year, magnitude, cost, fatalities, and number of scientific studies.
The 2005 Hindu Kush earthquake hit northeastern Afghanistan with a magnitude of 6.5 on December 12 at 21:47 (UTC). According to the United States Geological Survey, the maximum Mercalli intensity was V (Moderate) at Chitral. Five people were killed in the Hindu Kush region and landslides blocked several roads near Bagh, Kashmir. The earthquake occurred some 65 miles away from Faizabad, a city in the Hindu Kush mountains, but it could be felt in many neighboring areas. It could even be felt about 200 miles away in Islamabad, Pakistan. The quake was strong enough to trigger panic among survivors of October's devastating earthquake, who came out from their makeshift shelters in freezing temperatures. Although magnitude–6 earthquakes typically cause severe damage, this quake caused relatively little due to the fact that it occurred deep underground.
The 1976 Songpan–Pingwu earthquake that struck Songpan and Pingwu counties in Sichuan, China consisted of three mainshocks on the 16th, 21st, and 23rd (UTC) of August. A 1984 report gave the magnitudes as 7.2, 6.7, and 7.2, respectively. The magnitudes were subsequently recalculated as 6.7, 6.3, and 6.4 on the scale, and 7.0, 6.6, and 6.7 on the scale. These were preceded by an earthquake swarm lasting three years. During the period from August 16 to August 31 there were over 400 aftershocks of magnitude 3.0 or greater.
The 2008 Iceland earthquake was a doublet earthquake that struck on 29 May at 15:46 UTC in southwestern Iceland. The recorded magnitudes of the two main quakes were 5.9 and 5.8 Mw , respectively, giving a composite magnitude of 6.1 Mw . There were no human fatalities, but injuries were reported and a number of sheep were killed. The epicenter of the earthquake was between the towns of Hveragerði and Selfoss, about 45 kilometers (28 mi) east-southeast of the capital, Reykjavík. It was the strongest earthquake to hit Iceland since the summer of 2000.
The 2009 West Papua earthquakes occurred on January 4 local time in Indonesia's Tambrauw Regency in Southwest Papua. The very large earthquake doublet comprised a 7.6 initial shock that had a maximum Mercalli intensity of VI (Strong) and a second event measuring Mw 7.4 and a maximum Mercalli intensity of VII. The events took place less than three hours apart to the east-northeast of Sorong on the Bird's Head Peninsula and left at least four people dead and dozens injured.
The 2000 Turkmenistan earthquake took place at 8:11 p.m. Moscow Time on December 6 and had a magnitude of 7.0. The intensity of the earthquake reached VII at its epicenter, and IV at the Turkmen capital of Ashgabat. The epicentre was located approximately 25 kilometers north of the city of Balkanabat and 125 kilometres southeast of Türkmenbaşy. There were unconfirmed reports that the quake killed up to 11 people and injured 5 others.
The 1995 Neftegorsk earthquake occurred on 28 May at on northern Sakhalin Island in the Russian Far East. It was the most destructive earthquake known within the current state of Russia, with a magnitude of 7.1 and maximum Mercalli intensity of IX (Violent) that devastated the oil town of Neftegorsk, where 1,989 of its 3,977 citizens were killed, and another 750 injured.
The 1951 East Rift Valley earthquakes were a series of earthquakes which struck eastern Taiwan from 22 October 1951 to 5 December 1951, four of which registered at 7 or greater on the moment magnitude scale, the largest of those being magnitude 7.3 and 7.8 quakes on November 24. Altogether the quakes killed 85 people.
The 2010 Oaxaca earthquake struck Oaxaca, Mexico on June 30, 2010, with an magnitude of 6.3. Many people in different cities left their beds and ran into the street, as the quake struck at 2:22 am. Helicopters and police vehicles were sent to inspect possible damage in Mexico City, primarily in downtown and central areas, where some buildings were evacuated. Many boroughs reported power outages as a result of the earthquake, namely Azcapotzalco, Iztapalapa, and Benito Juárez. Additionally, damages to structures and infrastructure were reported throughout the city. One person died in San Andrés Huaxpaltepec, Oaxaca.
The 1967 Mudurnu earthquake or more correctly, the 1967 Mudurnu Valley earthquake occurred at about 18:57 local time on 22 July near Mudurnu, Bolu Province, north-western Turkey. The magnitude 7.4 earthquake was one of a series of major and intermediate quakes that have occurred in modern times along the North Anatolian Fault since 1939.
The 2010 Mindanao earthquakes occurred in the southern Philippines in the Moro Gulf. This was a complex sequence of events including three main events of magnitude 7.3 or greater on the 23rd of July, and two significant aftershocks of magnitude 6.6 on the 24th and 29th. All of these were deep focus earthquakes, at depths from 565 km (351 mi) to 634 km (394 mi). This resulted in minimal, but very widespread shaking at the surface, with a maximum intensity of IV on the PEIS scale; consequently there were no reports of casualties or damage.
The 1997 Harnai earthquake occurred on February 27 at 21:08 UTC near Harnai, Pakistan, and felt throughout much of central Balochistan, with a magnitude estimated at 7.0 on the scale. A 2016 study determined that this was a doublet earthquake, the Mw 6.8 shock that hit 19 seconds later being a continuation of the initial main shock. The largest aftershock was an 6.4 shock that hit 22 minutes after the main shock. The earthquake was caused by the collision between the Indian plate and the Eurasian plate.
The 1996 Chimbote earthquake occurred on February 21 at about 130 km off the coast of northern Peru, near the Peru–Chile Trench. The earthquake had a moment magnitude of 7.5 and occurred at 25.0 km (15.5 mi) depth.
On 7 September 2012, a series of earthquakes occurred in Yiliang County, Zhaotong, Yunnan. The two main shocks occurred at 11:19 and 12:16 China Standard Time. The earthquakes left 81 people dead and 821 injured. According to the officials, at least 100,000 people were evacuated and more than 20,000 houses were damaged.
The 1990 Vrancea earthquakes were three earthquakes on 30 and 31 May 1990 with magnitudes of 7.0 and 6.2 Mw that struck the Romanian county of Vrancea, on two consecutive days. Severe damage in the Bucharest-Brăila-Brașov area was reported and dozens of casualties in Romania and neighbouring Moldova, Ukraine and Bulgaria.
The 1976 Longling earthquake in Yunnan Province, People's Republic of China, was a doublet earthquake, with two main shocks striking just east of Longling at 12:23:20 and 14:00:22 UTC. The magnitudes were estimated at 6.7 and 6.6, respectively, on the (GCMT) scale, and 6.9 and 7.0 on the scale; Chinese sources put these at 7.4 and 7.3 on the scale. The region is noted for the quantity and intensity of its earthquakes, and the complexity of its tectonics, which are closely related to the collision between the Indian and Eurasian tectonic plates.
The 1982 Ometepec earthquake that struck Mexico's southwestern coast near Ometepec (Guerrero) on 7 June was a doublet earthquake that ruptured in two steps. The first happened at 06:52 UTC, the second five hours later at 10:59 UTC. Estimated magnitudes are 6.9 and 7.0 on the scale, and 5.8 and 6.0 on the scale. The maximum Mercalli intensities were VII and VIII, respectively.
In 1954, the state of Nevada was struck by a series of earthquakes that began with three magnitude 6.0+ events in July and August that preceded the Mw 7.1–7.3 mainshock and M 6.9 aftershock, both on December 12. All five earthquakes are among the largest in the state, and the largest since the Cedar Mountain earthquake of 1932 and Pleasant Valley event in 1915. The earthquake was felt throughout much of the western United States.
