Earthquake in Mexico on September 8, 2017
| Earthquake in Mexico | |||
|---|---|---|---|
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| Coordinates | 15 ° 4 '5 " N , 93 ° 42' 54" W | ||
| date | September 8, 2017 UTC | ||
| Time | 04:49:21 UTC | ||
| Magnitude | 8.2 M W | ||
| depth | 70 km | ||
| epicenter | 87 km southwest of Pijijiapan | ||
| country | Mexico | ||
| Tsunami | Yes | ||
| dead | 98 | ||
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The earthquake in Mexico on September 8, 2017 was a major earthquake off the coast of Chiapas in the eastern part of the Gulf of Tehuantepec . The earthquake with a moment magnitude of 8.2 M W occurred on September 7, 2017 at 11:49 p.m. local time (Sept. 8, 04:49 a.m. UTC). The hypocenter was about 87 km southwest of the city of Pijijiapan at a depth of 70 km.
The Secretaría de Gobernación published a report on September 12, 2017 that reported at least 98 people who were killed in the earthquake. Most of the fatalities were in the west of Chiapas state of Oaxaca with at least 78 victims; at least 16 people died in Chiapas; in Tabasco four.
The earthquake was also felt in the capital, Mexico City, where many people left their homes. The earthquake triggered a tsunami , the height of which was relatively moderate at one meter above the normal tide level.
It was the strongest earthquake worldwide in 2017 and was accompanied by earthquake lights.
The quake was stronger than the 1932 and September 19, 1985 quakes in Mexico, and after the 1787 Mexico earthquake , which reached an estimated magnitude of 8.6, the second largest in the country's recorded history. Twelve days later, the earthquake in Mexico on September 19, 2017 was another devastating catastrophe.
Tectonic overview
The earthquake of September 8, 2017 off the coast of Chiapas is the result of a medium-depth displacement. The focal solutions for the earthquake indicate that the fault occurred either from a fault that slopes very gently to the southwest or from a steep shift from northwest to southeast. At the site of the earthquake, the coconut plate converges with the North American plate at a rate of about 76 mm per year in a northeasterly direction. The coconut plate begins its subduction under Central America at the Central America Trench about 100 kilometers southwest of the earthquake epicenter. The position, depth and mechanism indicate that it is likely an intraplate event within the subducting coconut plate.
During the past hundred years, eight other earthquakes greater than 7.0 magnitude have occurred within 250 km of the epicenter of the earthquake on September 8, 2017, most of them in the subduction zone southeast of it near the Mexico- Guatemala border , however none of them had a magnitude greater than 7.5. The strongest of these was a magnitude 7.4 earthquake off the coast of Guatemala in November 2012, which killed 48 people and injured more than 150 others and caused significant damage along the coast.
On September 23, an aftershock with a magnitude of 6.1 M w occurred at 7:53 a.m. local time (12:53 a.m. UTC) . A few buildings and a bridge that had been damaged in the previous earthquake collapsed, and two people died of a heart attack.
Relief efforts
Non-governmental aid organizations from Germany such as u. a. humedica sent emergency aid to the disaster region.
Web links
supporting documents
- ^ A b Secretaría de Gobernación (SEGOB): Evaluacion de daños y analisis de necesides Reporte preliminar , Mexico City, September 12, 2017; accessed on September 13, 2017
- ↑ Reporte de Sismo: Sismo del día 07 de Septiembre de 2017, Chiapas (M 8.2) ( Spanish , PDF) State Seismological Service of Mexico. September 8, 2017. Archived from the original on September 8, 2017. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 8, 2017.
- ↑ a b c M 8.1 - 87km SW of Pijijiapan, Mexico ( English ) United States Geological Survey . September 7, 2017. Retrieved September 7, 2017.
- ↑ Earthquake of magnitude 8.1 strikes off Mexico's Pacific coast (English) . In: BBC News , September 8, 2017.
- ^ Mexico earthquake: mass evacuations after strongest tremor in a century (English) . In: The Guardian , September 8, 2017.
- ↑ Tsunami Message Number 5 (0653 UTC Fri Sep 8 2017) ( English ) National Weather Service (United States). September 8, 2017. Archived from the original on September 8, 2017. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 8, 2017.
- ↑ World - M7 + in 2017 ( English ) Retrieved September 8, 2017.
- ↑ Mike McKinnon: What caused the mysterious lights in the night sky after Mexico's earthquake? , Washington Post on September 15, 2017, accessed September 20, 2017
- ↑ Catalina Díaz: ¿Qué eran las luces que se vieron durante el sismo? , El Universal, Mexico , September 8, 2017, accessed September 20, 2017
- ↑ "Earthquake Lights" in the sky pose a puzzle. In: Today . September 8, 2017, accessed October 2, 2017 .
- ↑ Quake and risk of tsunami: Many dead in the worst quake in Mexico since 1932. Frankfurter Allgemeine Zeitung , September 8, 2017, accessed on September 8, 2017 .
- ↑ Hannah Strange, Alasdair Baverstock, Jamie Johnson: Mexico hit by 'strongest earthquake in a century' as magnitude 8.2 tremor triggers tsunami waves. In: The Daily Telegraph . September 8, 2017, accessed October 2, 2017 .
- ↑ Most powerful earthquake in 230 years hits Mexico sparking tsunami (English) . In: Metro , September 8, 2017.
- ^ Mexico earthquake: New tremor halts rescue operations. BBC , September 23, 2017, accessed September 24, 2017 .
- ↑ M 6.1 - 18km SSE of Matias Romero, Mexico. United States Geological Survey , September 23, 2017, accessed September 24, 2017 .
- ↑ Steffen Richter: Earthquake Mexico: Helpers on the move , humedica.org, September 12, 2017.
