Population’s perception of the 2015 Illapel’s earthquake
Personally, I (Ericson) was in Chile when the earthquake and the aftershocks struck, I was in Santiago on a second floor of a residential house. The house’s structure is based on confined masonry for the first floor and wood for the second one. Despite its magnitude, the Illapel’s earthquake felt different than what I was used […]
Learning from Earthquakes Mission: Kumamoto Earthquake 2016, Japan
Introduction A 4 member team from the New Zealand Society for Earthquake Engineering, comprising Dr Gabriele Chiaro, Dr Chris Massey, Gavin Alexander and P Brabhaharan, left New Zealand on 6th May and arrived in Oita, Japan on the evening of 7th May 2016. The team joined Prof Junichi Koseki and three colleagues (Tamoko Sasaki, Naoya […]
Ground Motion Assessment Summary
Figure 1. Historical seismicity of Chile – Source: CSN Several seismic motions have been felt since the main 8.4 Mw magnitude earthquake on 16 September 16 at 7:45 p.m. local Chilean time. As per 2 October, CSN had processed around 1100 aftershocks with magnitudes over 3.0, being the largest aftershock the one occurred […]
The Kyushu Japan Earthquake Sequence of April 2016
This report is based on a review of English language news media articles, reports available on the web pages of the Japan Meteorological Agency and the United States Geological Survey, and field reconnaissance conducted in several areas of significant earthquake damage between April 29th and May 1st 2016. The field reconnaissance included observation of damage […]
A Simple Evaluation Method of Seismic Resistance of Residential House under Two Consecutive Severe Ground Motions with Intensity 7
In the 2016 Kumamoto earthquake in Japan, two severe ground shakings with the seismic intensity 7 (the highest level in Japan Meteorological Agency scale; approximately X–XII in Mercalli scale) occurred consecutively on April 14 and 16. In the seismic regulations of most countries, it is usually prescribed that such severe earthquake ground motion occurs once […]
Resilience Reconnaissance Observation Report by LFE Travel Study Program Team
The LFE Travel Study Program is an initiative of EERI to conduct field study trips to earthquake affected regions around the world that offer members a unique opportunity to learn directly from local experts in the field, facilitating international knowledge transfer. Field study trips also help participants understand the role and importance of EERI reconnaissance […]
Kumamoto Earthquake Reconnaissance Briefing Videos
The videos in the series are: Damage to Highway Bridges, by Denis Istrati, University of Nevada, Reno Ground Motions and Early Warning, by Masumi Yamada, DPRI Kyoto University Soil and Structure Damages under Extreme Ground Motion, by Hiroyuki Goto, DPRI, Kyoto University Societal Impacts: Sheltering & Volunteers, by James Goltz, DPRI, Kyoto University. Kumamoto Earthquake Damage to […]
Tsunami Resilience Observation Report by LFE Travel Study Program Team
The LFE Travel Study Program is an initiative of EERI to conduct field study trips to earthquake affected regions around the world that offer members a unique opportunity to learn directly from local experts in the field, facilitating international knowledge transfer. Field study trips also help participants understand the role and importance of EERI reconnaissance […]
State of Dams and Levees
The GDACS Earthquake Impact report lists only one dam, the Cogoti dam, as at risk. The Cogoti dam is 92 km from the earthquake epicenter. Peak acceleration contour maps from the USGS following the earthquake suggest a peak ground acceleration between 0.2 and 0.3 g at the Cogoti Dam (approximately located at the red dot). Figure […]
Preliminary Reconnaissance Observations for the M8.3 Coquimbo, Chile Earthquake and Tsunami
Read the Report: Preliminary Reconnaissance Observations for the M8.3 Coquimbo, Chile Earthquake and Tsunami (2 MB PDF)