The 1986 Chalfant Valley earthquake struck southern Mono County near Bishop and Chalfant, California at Pacific Daylight Time on July 21. With a moment magnitude of 6.2 and a maximum Mercalli intensity of VI (Strong), the shock injured two people and caused property damage estimated at $2.7 million in the affected areas. There was a significant foreshock and aftershock sequence that included a few moderate events, and was the last in a series of three earthquakes that affected southern California and the northern Owens Valley in July 1986.
A potent magnitude 6.6 Mw intraplate aftershock occurred at 17:16 JST (08:16 UTC) on 11 April, in the Hamadōri region of Fukushima, Japan. With a shallow focus of 13 km (8.1 mi), the earthquake was centred inland about 36 km (22 mi) west of Iwaki, causing widespread strong to locally severe shaking. It was one of many aftershocks to follow the 11 March Tōhoku earthquake, and the strongest to have its epicentre located inland.
The 1988 Lancang–Gengma earthquakes, also known as the 11.6 earthquakes by the Chinese media were a pair of devastating seismic events that struck Lancang and Gengma counties, Yunnan, near the border with Shan State, Burma. The pair of earthquakes measuring magnitude 7.7 and 7.2, respectively, occurred 13 minutes apart. They were earthquakes were assigned a maximum China seismic intensity of IX and X, respectively. An estimated 748–939 people were killed and more than 7,700 were injured in 20 counties across five prefectures of Yunnan. Both earthquakes resulted in $US 270 million in damages and economical losses. Moderately large aftershocks continued to rock the region, causing additional casualties and damage.
In 1954, the state of Nevada was struck by a series of earthquakes that began with three M 6.0+ events in July and August that preceded the M 7.3 mainshock and M 6.9 aftershock, both on December 12. All five earthquakes remain some of 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.
On March 20, 2021 at 18:09 JST. The magnitude 6.9 or 7.0 earthquake struck offshore east of Tōhoku, Japan at a depth of 54.0 kilometers (33.6 mi) to 60 kilometers (37 mi). It had a maximum JMA intensity of Shindo 5+ while on the Mercalli intensity scale, it earned a rating of VII. Power outages and some slight damage in Miyagi was reported.
The 2021 Maduo earthquake, also known as the 5.22 earthquake struck Madoi County in Qinghai Province, China on 22 May at 02:04 local time. The earthquake had a moment magnitude and surface-wave magnitude of 7.4. Highway bridges, roads and walls collapsed as a result of the earthquake. According to an anonymous source, at least 20 people were killed, 300 were injured, and 13 were missing. Officials stated that there were no deaths but 19 people sustained minor injuries. It was the strongest in China since 2008. It was assigned a maximum intensity of X in Machali, Maduo County on the China seismic intensity scale and Modified Mercalli intensity scale. This earthquake was preceded by another unrelated earthquake that occurred 5 hours earlier in Yunnan.
The 1986 Kalamata earthquake struck the southern Peloponnese Region of Greece on September 13 at 20:24 local time. The moment magnitude 6.0 or surface-wave magnitude 6.2 earthquake had an epicenter located near the coastal city of Kalamata. It was assigned X (Extreme) on the Modified Mercalli intensity scale caused by extensive damage in Kalamata. At least 20 people died and approximately 300 were injured.
The 1995 Menglian earthquake or 1995 Myanmar–China earthquake occurred on 12 July at 05:46:43 local time in the Myanmar–China border region. The earthquake had an epicenter on the Myanmar side of the border, located in the mountainous region of Shan State. It registered 7.3 on the Chinese surface wave magnitude scale (Ms ) and 6.8 on the moment magnitude scale (Mw ). With a maximum Mercalli intensity assigned at VIII, the quake killed eleven people and left another 136 injured. Over 100,000 homes in both countries were destroyed and 42,000 seriously damaged. Some damage to structures were also reported in Chiang Mai and Chiang Rai, Thailand. The low death toll from this earthquake was attributed to an early warning issued prior to it happening. Precursor events including foreshocks and some seismic anomalies led to an evacuation of the area before the mainshock struck. It is thought to be one of the few successfully predicted earthquakes in history.
The 1990 Bohol earthquake occurred on February 8, 1990 at 15:15:32 which had a magnitude of 6.8 on the moment magnitude scale and VII on the Modified Mercalli intensity scale. Most of the damage was observed in the province of Bohol. A tsunami hit the southeastern coastline of Bohol and the island of Camiguin. There were 6 deaths, over 200 injuries and an estimated ₱157 million in total damages reported.
The 1990 Carlentini earthquake occurred off the Sicilian coast, 20 km east northeast from the town of Augusta, Sicily on 13 December at 01:24 local time. The moderately-sized earthquake measuring 5.6 on the moment magnitude scale (Mw ) resulted in the deaths of 19 people and caused at least 200 injuries. It also inflicted significant damage in the region, leaving 2,500 homeless.
On 9 July 2019, at 8:36 PM (PST), an earthquake measuring 5.6 jolted the province of North Cotabato, Davao del Sur, and other nearby provinces. The National Disaster Risk Reduction and Management Council reported one dead and three injured in Makilala after the earthquake, and a total of 164 families affected in Cotabato Province. Near the epicenter of the earthquake, the severity of strong ground motion was assigned VI (Strong) on the Modified Mercalli intensity scale. A total of 106 schools, 119 houses, and 14 other infrastructures were damaged by the earthquake.
The 1998 Azores Islands earthquake struck the Azores Islands of Portugal at 05:19 local time. The shallow mainshock, which measured 6.2 on the moment magnitude scale caused significant damage on the island of Faial and Corvo, despite being centered offshore in the Atlantic Ocean. At least 10 people died and some 100 were injured in the earthquake, while 2,500 people were left without homes.
On February 7, 2021, at 12:22 PM PST, an earthquake measuring Mw 6.0 struck Davao del Sur and Cotabato. The event registered a Modified Mercalli Intensity Scale (MMI) of VIII (Severe) with VII on the PHIVOLCS Earthquake Intensity Scale (PEIS).
On August 12, 2021, at 01:46:12 PST, a strong Mw 7.1 earthquake struck the island of Mindanao at a depth of 56.7 kilometers (35.2 mi). It perceived Intensity V on the PHIVOLCS Earthquake Intensity Scale. No damage or injuries were reported but a young man was killed by the earthquake.
The 2016 Alborian Sea earthquake struck offshore, north northeast of Al Hoceïma, Morocco in the Strait of Gibraltar on January 25 at 04:22:02 UTC, or roughly 05:22:02 West Africa Time. The strongest in the Alboran Sea, the earthquake measured 6.3–6.4 on the moment magnitude scale (Mw ) at a shallow hypocenter depth of 12 km (7.5 mi). Assigned a maximum Modified Mercalli scale intensity of VI (Strong), the earthquake caused one fatality, at least 30 injuries, and moderate damage in Morocco and Spain.
An earthquake struck approximately 53 kilometres SSE of the town of Mansfield, in the Victorian Alps of Australia on 22 September 2021, at 09:15 local time. The earthquake measured 5.9 on the moment magnitude scale. The earthquake caused minor structural damage in parts of Melbourne and left one person injured. The earthquake was also felt in New South Wales, Australian Capital Territory, South Australia and Tasmania. The earthquake was substantially stronger than the 1989 Newcastle earthquake that measured 5.6 and killed 13 people.
The 1954 Sofades earthquake event struck central Greece on April 30, 1954 16:02 (UTC+3). The tremor was recorded with magnitudes ranging from 6.7−7.0 Mw and intensity X (Extreme) as the highest recorded on the Modified Mercalli Intensity scale. More than 25 people were killed, 717 suffered injuries and about 28,000 structures were damaged or completely destroyed.
The 1955 Lanao earthquake struck Lanao del Sur on April 1 at 02:17 local time. The earthquake measuring 7.4 on the moment magnitude scale and assigned a maximum intensity of VIII (Severe) on the Modified Mercalli intensity scale was one of the largest to hit Mindanao. It caused immense damage around Lake Lanao and the southern reaches of the Visayan islands. It killed at least 465 individuals and injured a further 898.
The 1986 Malatya earthquake was a 6.1 earthquake that occurred in the early morning hours of May 5th, 1986. It registered a maximum Modified Mercalli Intensity of VIII (Severe). It occurred near the city of Malatya, Turkey.
