Английская Википедия:2017 Chiapas earthquake

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Шаблон:Short description Шаблон:Redirect Шаблон:Expand Spanish Шаблон:Use dmy dates Шаблон:Infobox earthquake The 2017 Chiapas earthquake struck at 23:49 CDT on 7 September (local time; 04:49 on the 8th UTC) in the Gulf of Tehuantepec off the southern coast of Mexico near the state of Chiapas, approximately Шаблон:Convert southwest of Pijijiapan (alternately, Шаблон:Convert south-southwest of Tres Picos),[1] with a Mercalli intensity of IX (Violent).[2] The moment magnitude was estimated to be Шаблон:M.[3]

The earthquake caused all of Mexico City to tremble, prompting people to evacuate after the early warning system was triggered.[2] It also generated a tsunami with waves Шаблон:Convert above tide level;[4] and tsunami alerts were issued for surrounding areas.[5] Mexico's president called it the strongest earthquake recorded in the country in a century.[6] It was also the second strongest recorded in the country's history, behind the magnitude 8.6 earthquake in 1787,[7] and the largest recorded globally in 2017.[8]

Tectonic setting

The Gulf of Tehuantepec lies above the convergent boundary where the Cocos Plate is being subducted below the North American Plate at a rate of 6.4 cm/yr (2.5 in/yr).[9][10]

Background

On 6 September, several earthquake alarms in Mexico City were mistakenly activated, leading to the evacuation of buildings. The incident prompted a review of the system.[11]

Earthquake

Файл:People in Mexico City Downtown after 2017 Chiapas earthquake.jpg
People outside a hotel in Mexico City a few minutes after the earthquake

According to the National Seismological Service (SSN) of Mexico, the epicenter was located in the Gulf of Tehuantepec, about Шаблон:Convert southeast of Tonalá, Chiapas.[12] The United States Geological Survey (USGS) reported that the epicenter was about Шаблон:Convert southwest of Pijijiapan, Chiapas.[3] The hypocenter was about Шаблон:Convert underground, deeper than usual for a relatively new subduction zone.[13] The SSN reported a measurement of M 8.2,[12] while the USGS also reported a M 8.2 earthquake after correcting an earlier estimate of M 8.0.[3] The earthquake was a result of normal faulting within the Cocos Plate with a displacement of up to Шаблон:Convert.[3][14] The entire thickness of the lithosphere of the Cocos Plate ruptured during the earthquake.[13]

The earthquake is the most powerful in Mexico to be measured by seismographs. Mexican President Enrique Peña Nieto called the earthquake the "largest in at least a century" and said that it was felt by 50 million people.[6][15]

Geophysicists at the National Autonomous University of Mexico speculated that the earthquake relieved stored pressure in the "Tehuantepec gap", making future earthquakes in the region less likely.[16]

Tsunami

A tsunami with waves of Шаблон:Convert and higher was generated by the earthquake and was recorded at Salina Cruz;[17] A tsunami wave of Шаблон:Convert was reported in Chiapas.[4] The Pacific Tsunami Warning Center issued a warning for the entire Pacific coast of Central America, also extending south to Ecuador.[6][18]

Aftershocks

In the hour following the earthquake, at least 12 aftershocks were recorded by the USGS.[19] As of 00:30 September 14 (UTC Time), the National Seismological Service (SSN) has recorded at least 1,806 aftershocks, of up to a magnitude of 6.1.[20] Шаблон:Gallery

# CDT time Epicenter Nearby landmarks Depth Шаблон:M
List of aftershocks recorded by USGS[21]
Main 7 September 2017 23:49:21 Шаблон:Coord Шаблон:Convert southwest of Pijijiapan Шаблон:Convert 8.2
1 8 September 2017 0:01:38 Шаблон:Coord Шаблон:Convert southwest of Paredon Шаблон:Convert 5.7
2 8 September 2017 0:17:42 Шаблон:Coord Шаблон:Convert south-southeast of San Francisco del Mar Шаблон:Convert 5.4
3 8 September 2017 0:24:40 Шаблон:Coord Шаблон:Convert southwest of Paredon Шаблон:Convert 5.2
4 8 September 2017 0:33:38 Шаблон:Coord Шаблон:Convert south-southwest of Paredon Шаблон:Convert 5.2
5 8 September 2017 0:57:00 Шаблон:Coord Шаблон:Convert southwest of Tonalá Шаблон:Convert 5.1
6 8 September 2017 1:08:47 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0
7 8 September 2017 2:38:38 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.3
8 8 September 2017 2:59:57 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.2
9 8 September 2017 3:34:34 Шаблон:Coord Шаблон:Convert southwest of Tonalá Шаблон:Convert 5.9
10 8 September 2017 6:25:56 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0
11 8 September 2017 6:43:07 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.2
12 8 September 2017 9:24:59 Шаблон:Coord Шаблон:Convert southwest of Arriaga Шаблон:Convert 5.3
13 8 September 2017 9:45:00 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.5
14 8 September 2017 12:02:55 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0
15 8 September 2017 13:24:14 Шаблон:Coord Шаблон:Convert southwest of Salina Cruz Шаблон:Convert 5.1
16 8 September 2017 13:57:23 Шаблон:Coord Шаблон:Convert southwest of Salina Cruz Шаблон:Convert 5.2
17 8 September 2017 21:32:07 Шаблон:Coord Шаблон:Convert southwest of Tonalá Шаблон:Convert 5.4
18 8 September 2017 22:08:14 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.3
19 8 September 2017 23:54:48 Шаблон:Coord Шаблон:Convert southwest of Pijijiapan Шаблон:Convert 5.6
20 9 September 2017 0:22:16 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.2
21 9 September 2017 1:24:20 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0
22 9 September 2017 7:17:40 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.4
23 9 September 2017 10:30:09 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0
24 9 September 2017 15:26:16 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0
25 9 September 2017 22:07:21 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.8
26 10 September 2017 10:28:50 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0
27 11 September 2017 9:55:58 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.2
28 11 September 2017 16:09:13 Шаблон:Coord Шаблон:Convert southwest of Tonalá Шаблон:Convert 5.2
29 11 September 2017 20:12:31 Шаблон:Coord Шаблон:Convert southwest of Tonalá Шаблон:Convert 5.6
30 12 September 2017 0:08:45 Шаблон:Coord Шаблон:Convert southwest of Pijijiapan Шаблон:Convert 5.3
31 12 September 2017 4:20:01 Шаблон:Coord Шаблон:Convert south of Salina Cruz Шаблон:Convert 5.0
32 12 September 2017 15:07:30 Шаблон:Coord Шаблон:Convert southeast of Salina Cruz Шаблон:Convert 5.0

Damage and aftermath

Шаблон:Multiple image Within Chiapas, an estimated 1.5 million people were affected by the earthquake, with 41,000 homes damaged.[22][23] Jose Calzada, Minister of Agriculture, reported that at least 98 people had died in the earthquake, including 78 in Oaxaca, 16 in Chiapas and 4 in Tabasco. The Secretariat of the Interior declared a state of emergency for 122 municipalities in Chiapas,[24] and the Mexican Army was deployed to aid in disaster relief.[25] Schools were closed on 8 September in 11 states for safety inspections.[26] Damage in Veracruz was reported, meanwhile the state is expecting the arrival of Hurricane Katia on 9 September.[26] Hurricane Max made landfall in Guerrero state on 14 September, near the earthquake-stricken region.[27]

Buildings in Juchitán de Zaragoza, Oaxaca, closest to the epicenter, were "reduced to rubble" according to reports from the town's mayor.[28]

The earthquake also caused buildings to shake and sway in Mexico City, while also knocking out electricity for 1.8 million people.[22][26] There were reports of glass shattered at Mexico City International Airport.[29] A highway bridge under construction near Mexico City's new international airport collapsed due to the shaking.[30]

The epicenter was near Mexico's border with Guatemala, where the quake was felt in Guatemala City, and infrastructure damage was reported by CONRED in the nation's south-west.[31] President Jimmy Morales stated that one Guatemalan was killed.[32]

Response

On 11 September, Mexico recalled its aid to the United States, offered in the aftermath of Hurricane Harvey, to focus on earthquake recovery.[33]

United States President Donald Trump called Mexican President Enrique Peña Nieto on 14 September, a week after the earthquake, to express his condolences.[34]

Three years after the earthquake, Governor Alejandro Murat reported that 60,000 homes have been rebuilt, but that many others still have not been. He reported that sixty health centers have been reconstructed, and in 2020 they plan to rebuild 2,000 schools.[35]

See also

Шаблон:GeoGroupTemplate Шаблон:Commons category

Шаблон:Portal bar

References

Шаблон:Reflist

External links

Шаблон:Earthquakes in 2017 Шаблон:Earthquakes in Mexico

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  3. ↑ 3,0 3,1 3,2 3,3 Ошибка цитирования Неверный тег <ref>; для сносок short-anss|Chiapas|2017 не указан текст
  4. ↑ 4,0 4,1 Шаблон:Cite web
  5. ↑ Шаблон:Cite web
  6. ↑ 6,0 6,1 6,2 Шаблон:Cite news
  7. ↑ Шаблон:Cite news
  8. ↑ Шаблон:Cite web
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  10. ↑ Шаблон:Cite news
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  12. ↑ 12,0 12,1 Шаблон:Cite web
  13. ↑ 13,0 13,1 Шаблон:Cite journal
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  29. ↑ Шаблон:Cite news
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  34. ↑ Шаблон:Cite news
  35. ↑ Шаблон:Cite web
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