UTC time | 1933-08-25 07:50:32 |
---|---|
ISC event | 905779 |
USGS-ANSS | ComCat |
Local date | August 25, 1933 |
Local time | 15:50:32 |
Magnitude | 7.3 Mw [1] |
Depth | 15 km (9 mi) [1] |
Epicenter | 32°01′N103°41′E / 32.01°N 103.68°E [1] (Diexi, Mao County, Sichuan) |
Areas affected | Republic of China |
Total damage | Extreme [2] |
Max. intensity | MMI X (Extreme) [2] |
Casualties | 6,865–9,300 dead [3] 1,925 injured [3] |
The 1933 Diexi earthquake occurred in Diexi, Mao County, Sichuan, Republic of China on August 25 with a moment magnitude of 7.3 and a maximum Mercalli intensity of X (Extreme). With up to 9,300 killed, this was the deadliest earthquake in 1933.
This earthquake destroyed the town of Diexi and surrounding villages, and caused many landslides. [4] The old town of Diexi was submerged in landslide dam-created Diexi Lake.
The 2007 Aysén Fjord earthquakes occurred in Aisén Fjord, Chile from January 22 – April 22. The biggest occurred at 1:53 p.m. on April 21 and reached a felt intensity of VII on the Mercalli intensity scale. On the moment magnitude scale, the earthquake reached a magnitude of 6.2. Ten people disappeared due to a tsunami caused by a landslide, according to ONEMI, but three bodies were found on April 22 by the Chilean Navy.
The 1986 San Salvador earthquake occurred at 11:49:26 local time on 10 October 1986 with a moment magnitude of 5.7 and a maximum Mercalli intensity of IX (Violent). The shock caused considerable damage to El Salvador's capital city of San Salvador and surrounding areas, including neighboring Honduras and Guatemala.
The 1920 Haiyuan earthquake occurred on December 16 in Haiyuan County, Ningxia Province, Republic of China at 19:05:53. It was also called the 1920 Gansu earthquake because Ningxia was a part of Gansu Province when the earthquake occurred. It caused destruction in the Lijunbu-Haiyuan-Ganyanchi area and was assigned the maximum intensity on the Mercalli intensity scale. About 258,707-273,407 died, making it one of the deadliest earthquakes in China and disasters in China by death toll.
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 Mw scale, and 7.0, 6.6, and 6.7 on the Ms 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 1980 Oaxaca earthquake occurred on October 24 at 08:53:36 local time with a moment magnitude of 7.2 and a maximum Mercalli intensity of IX (Violent). This dip-slip shock left up to 300 dead, many injured, and about 150,000 homeless. While it was felt throughout southern Mexico and in Guatemala, damage was focused in the Huajuapan de León region of the state of Oaxaca.
The 1967 Koynanagar earthquake occurred near Koynanagar town in Maharashtra, India on 11 December local time. The magnitude 6.6 shock hit with a maximum Mercalli intensity of VIII (Severe). It occurred near the site of Koyna dam, raising questions about induced seismicity, and claimed at least 177 lives and injured over 2,200.
The following is a summary of significant earthquakes during the 21st century. In terms of fatalities, the 2004 Indian Ocean earthquake was the most destructive event with 227,898 confirmed fatalities, followed by the 2010 Haiti earthquake with about 160,000 fatalities, the 2008 Sichuan earthquake with 87,587 fatalities, the 2005 Kashmir earthquake suffered by Pakistan with 87,351 fatalities, and the 2023 Turkey–Syria earthquakes with at least 59,488 fatalities.
The 2003 Altai earthquake, or 2003 Chuya earthquake, occurred on September 27 at 18:33:26 local time with a moment magnitude of 7.3 and a maximum Mercalli intensity of X (Extreme). The epicenter of this oblique-slip shock was in Altai Republic, Russia near the borders of Mongolia, China, and Kazakhstan. Three deaths and five injuries were reported and the total damage was listed as $10.6–33 million.
The 1935 Digor earthquake occurred on 1 May at Digor, Kars in the Eastern Anatolia region of Turkey. It had a moment magnitude of 6.1 and caused 540 fatalities.
The 1931 Zangezur earthquake occurred on April 27 at 20:50:45 local time with a moment magnitude of 6.5. The earthquake was located in the Zangezur Mountains near the boundary between southwestern Armenia and Azerbaijan's exclave, the Nakhichivan Autonomous Republic. Both territories were part of the Soviet Union at that time.
The 1975 Hawaii earthquake occurred on November 29 with a moment magnitude of 7.7 and a maximum Mercalli intensity of VIII (Severe). The shock affected several of the Hawaiian Islands and resulted in the deaths of two people and up to 28 injured. Significant damage occurred in the southern part of the Big Island totalling $4–4.1 million, and it also triggered a small brief eruption of Kilauea volcano.
The 2004 Nabire earthquake occurred on November 26 in Nabire Regency, Central Papua, Indonesia. The strike-slip event had a moment magnitude of 7.1 and a maximum Mercalli intensity of VIII (Severe). Total deaths for the event amounted to 32, and the total number of injured was 130–213.
The 1976 Sabah earthquake occurred at 10:56 am on 26 July near Lahad Datu in the eastern portion of Sabah, Malaysia. The moment magnitude 6.3 earthquake is one of the strongest in Malaysia to be recorded by seismic instruments. It had a focal mechanism corresponding to strike-slip faulting. While slightly larger than the 2015 Sabah earthquake, the 1976 event caused less extensive damage, in the form of cracks on several buildings and ground cracks.
The 1918 San Jacinto earthquake occurred in extreme eastern San Diego County in Southern California on April 21 at 14:32:29 local time. The shock had a moment magnitude of 6.7 and a maximum Mercalli intensity of IX (Violent). Several injuries and one death occurred with total losses estimated to be $200,000.
The 1990 Upland earthquake occurred at 15:43:37 local time on February 28 with a moment magnitude of 5.7 and a maximum Mercalli Intensity of VII. This left-lateral strike-slip earthquake occurred west of the San Andreas Fault System and injured thirty people, with total losses of $12.7 million. Many strong motion instruments captured the event, with an unexpectedly high value seen on water tank near the epicentral area.
The 1981 Golbaf earthquake occurred on June 11 at 10:54:25 local time with a moment magnitude of 6.6 and a maximum Mercalli intensity of VIII+ (Severe). Total damage was considered moderate and amounted to $5 million in financial losses, with many injured and 3,000 killed.
The 2004 Baladeh earthquake occurred on May 28 in northern Iran. This dip-slip earthquake had a moment magnitude of 6.3 and a maximum Mercalli intensity of VIII (Severe). Total deaths for the event amounted to 35, with 278–400 injured, and $15.4 million in damage.
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 Mw(GCMT) scale, and 6.9 and 7.0 on the Ms scale; Chinese sources put these at 7.4 and 7.3 on the Ms7 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 1913 Eshan earthquake struck China's Yunnan Province on 21 December with a moment magnitude of 6.8 and maximum Mercalli intensity of IX (Violent). The shock devastated Eshan County; at least 942 people died and thousands of homes were destroyed. The earthquake ruptured along a section of the strike-slip Qujiang Fault.