2018 Model Bridge Competition – Kickoff is Saturday, October 28, 2017

October 5, 2017 by
Boston Society of Civil Engineers Section The Engineering Center Education Trust One Walnut Street Boston, MA 02108-3616 Phone: (617) 227-5551 Fax: (617) 227-6783
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Magnitude 7.1 – 5km ENE of Raboso, Mexico – September 19, 2017

September 20, 2017 by

USGS Event Page
2017-09-19 18:14:39 UTC
Magnitude 7.1
5km ENE of Raboso, Mexico
18.584°N  – 98.399°W
51 km depth

CNN Report –
http://www.cnn.com/2017/09/19/americas/mexico-earthquake/index.html

USGS – Tectonic Summary
“The September 19, 2017, M 7.1 earthquake in Central Mexico occurred as the result of normal faulting at a depth of approximately 50 km. Focal mechanism solutions indicate that the earthquake occurred on a moderately dipping fault, striking either to the southeast, or to the northwest. The event is near, but not directly on, the plate boundary between the Cocos and North America plates in the region. At the location of this event, the Cocos plate converges with North America at a rate of approximately 76 mm/yr, in a northeast direction. The Cocos plate begins its subduction beneath Central America at the Middle America Trench, about 300 km to the southwest of this earthquake. The location, depth, and normal-faulting mechanism of this earthquake indicate that it is likely an intraplate event, within the subducting Cocos slab, rather than on the shallower megathrust plate boundary interface.”

Magnitude 5.6 – 115km S of San Francisco del Mar, Mexico – September 18, 2017

September 18, 2017 by

USGS Event Page
2017-09-18 14:19:12 UTC
Magnitude 5.6
115km S of San Francisco del Mar, Mexico
Location: 15.192°N   -94.618°W
11.7 km depth