Geer-Atc Mw7.8 Ecuador 4/16/16 Earthquake Reconnaissance Part I : Seismological & Ground Motion Aspects

Abstract eng:
On the evening of April 16th, 2016, a moment magnitude Mw7.8 earthquake struck northern Ecuador, offshore of its west coast. The earthquake was named Muisne after the city of its epicenter, located about 29 km south-southeast of the town of Muisne, in the province of Manabí, at a hypocentral depth of 21 km. In the first 24 hours, over 135 aftershocks were recorded with hundreds more in the weeks that followed. Overall, this earthquake and its aftershocks led to hundreds of fatalities, thousands of injuries, tens of thousands homeless and an economic impact estimated at 3% of the nation’s Gross Domestic Product (GDP). This paper is the first part of two papers that will present selected geotechnical reconnaissance observations from this earthquake, including seismological and strong ground motion aspects, based on the reconnaissance findings from the mission of the team deployed by the Geotechnical Extreme Event Reconnaissance (GEER) Association and the Applied Technology Council (ATC) with a detailed report available at www.geerassociation.org.

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