Powerful Earthquake Doublet Strike Peru-Brazil Border
Posted by feww on November 25, 2015
Two M7.6 Earthquakes Strike SE Peru
The deep-focus earthquake doublet struck at a depth of about 600 km, approximately 1,000km east of the Peru-Chile Trench within the subducted oceanic lithosphere of the Nazca plate, where the Nazca plate subducts to the east under the South America plate at a velocity of about 69 mm/y, reported USGS/EHP.
The doublet occurred 5 minutes apart; separated about 50 km horizontally, and just over 6km vertically. The second earthquake was most probably triggered by the first event, said the report.
M7.6 located 10.047°S, 71.023°W about 210km S of Tarauaca, Brazil 2015-11-24 22:50:53 UTC depth of 611.7km
- 269km (167mi) WNW of Cobija, Bolivia
- 271km (168mi) WNW of Brasileia, Brazil
- 692km (430mi) ENE of Lima, Peru
M7.6 located 10.548°S, 70.904°W about 169km WNW of Iberia, Peru 2015-11-24 22:45:38 UTC depth of 600.6km
- 239km (149mi) WNW of Cobija, Bolivia
- 241km (150mi) WNW of Brasileia, Brazil
- 688km (428mi) ENE of Lima, Peru
Other Significant Events
- M6.0 located 18.791°N, 145.311°E about 37km W of Agrihan, Northern Mariana Islands 2015-11-24 13:21:35 UTC depth of 586.2km