Where did an earthquake happen in Xinjiang?

Earthquakes occur in all seismic zones in Xinjiang, which are usually divided into five seismic zones: Altai, North Tianshan, South Tianshan, Altun and West Kunlun.

As of March 16, 2020, Xinjiang earthquake:

On October 5th, 2020/KLOC-0 15: 30, an earthquake of magnitude 3.2 occurred in Kuche County, Aksu Prefecture, Xinjiang, with a focal depth of 9 kilometers.

On June 5th, 2020, an earthquake of magnitude 3. 1 occurred in Kuqa county, Aksu region, Xinjiang, with focal depth 13 km.

The earthquake of M = 5.6 that occurred in Kuqa County in June 65438+10/October 65438+June 2020 should be the main seismic activity with the focal depth of 16km.

On June 65438+1October 65438+September, 2020, an earthquake of magnitude 6.4 occurred in Jiashi, Xinjiang, with a focal depth of 16 km.

An earthquake of magnitude 3.8 occurred in Gaochang District, Turpan City, Xinjiang on February, 2020/0/0/2 15 km.

At 9: 00 on March 7, 2020, an earthquake of magnitude 3.3 occurred in Kizilsu Atushi, Xinjiang, with a focal depth of 23 kilometers.

At 6: 58 on March 8, 2020, an earthquake of magnitude 4.0 occurred in Tashkurgan County, Kashgar, Xinjiang (36.9 1 degree north latitude and 75.8 1 degree east longitude) with a focal depth of 10 km.

At 5: 44 on March 10, 2020, an earthquake of magnitude 3.8 occurred in Hotan County, Hotan Prefecture, Xinjiang, with a focal depth of 8 kilometers.

On March 5, 2020 17: 43, a 2.2-magnitude earthquake occurred in Karamay District (sense) (45.45 degrees north latitude and 84.77 degrees east longitude) of Karamay City, Xinjiang, with a focal depth of 7 kilometers.

On March 6, 2020 10: 58, an earthquake of magnitude 3.5 occurred in Shayibak District, Urumqi, Xinjiang, with a focal depth of 20 kilometers.

On March 6, 2020 17: 44, an earthquake of magnitude 3.8 occurred in Qitai County, Changji Prefecture, Xinjiang, with a focal depth of 23 kilometers. The epicenter was located at 44. 15 degrees north latitude and 89.45 degrees east longitude.

On March 6, 2020 16: 00 19: 52, an earthquake of magnitude 3.4 occurred in Jingxian County, Bayinguoleng District, Xinjiang, with a focal depth of 16 km.

Extended data:

Five earthquake distribution areas in Xinjiang

(1) Altai seismic belt

It is a part of the Altai-Mongolian seismic belt in China, located in Altai Mountain and its marginal zone in northern Xinjiang. Since 19 17, there have been 8.0 earthquakes 1 time, 7.0 ~ 7.9 earthquakes 1 time and 6.0 ~ 6.9 earthquakes five times in this area.

(2) North Tianshan seismic belt

Distributed in the northern Tianshan Mountains and the northern margin of China (including the southern Junggar Basin). From Yiwu in Hami area to the east, it is distributed in a nearly east-west belt, passing through Hami, Turpan, Urumqi, Shihezi, Wusu and Jinghe, reaching Yining and Wenquan in the west, and extending from Zhaosu to Kazakhstan in the west, showing a long strip with a wide west and a narrow east.

Earthquakes in the northern Tianshan seismic belt are mainly distributed in the southern margin of Junggar basin and the junction of Yili basin and mountains, which is consistent with the main structural direction near east-west. Since 17 16, there have been 8 earthquakes 1 times, 5 earthquakes of 7.0 ~ 7.9 and 6.0 ~ 6.9 earthquakes 10 times in China. The earthquake activity is strong in the west and weak in the east, and strong earthquakes are mainly concentrated in the west of Urumqi. In the east of Urumqi, except for 1842 and 19 14, only 1 6 earthquake with magnitude of 6 occurred.

(3) South Tianshan seismic belt

Mainly distributed in China and the southern Tianshan Mountains at the junction with Tarim Basin, it can be divided into two parts: Aksu in the east of Korla and Wushi-Artushi and Wuqia in the west.

Generally, the eastern section is east-west distribution. * * There were earthquakes of magnitude 7 or above 1 time and 8 earthquakes of magnitude 6.0 ~ 6.9, of which two strong earthquakes occurred 1949 Kuqa 7? M _ s earthquake and 1927 and static 6? Magnitude earthquake. The seismic activity is basically distributed near the 42 north latitude line.

* * * 8 earthquake 1 time, 7 earthquake twice, 6.0 ~ 6.9 earthquake 52 times. Among them, the earthquake with magnitude above 7 is 1902 Atushi 8? 1955 The northwest Wuqia earthquake with magnitude 7 and two earthquakes with magnitude 7. Seismic activity mainly occurs in the east-west thrust fault zone and the NE-NE reverse strike-slip fault zone around the Keping fault block. The former is large in magnitude and high in seismic activity frequency, while the latter is mostly strong earthquakes of magnitude 6 and moderate earthquakes of magnitude 5. Its main seismogenic structural faults are complex.

(4) West Kunlun seismic belt

It refers to a part of the Pamir-West Kunlun seismic belt in China, which is distributed in the West Kunlun Mountain, the northeast of Pamir Plateau and the marginal zone. Generally, it spreads in the northwest direction, from the south to the northwest, passing through Kekeya, Tashkurgan and Shufu, and extending westward into Tajikistan.

(5) Altun seismic belt

It is distributed in Altun Mountain and its two sides, and generally distributed in northeast belt. From the junction of Xinjiang and Gansu in the northeast to Joan Mu Zi Tale in the southwest, there are two 7? M = 6.0 earthquake and three M = 6.0 ~ 6.9 earthquakes. The intensity and frequency of seismic activity are low, and the b value is about 0.53. Earthquakes are mainly distributed on the famous Altun fault and the northern margin fault of Altun. They are all located in the shallow earthquakes with a depth of less than 35km.

Baidu encyclopedia-Xinjiang earthquake zone