Preliminary Observations by Montalva and Cerda at Universidad de Concepción
Although the 8.2 Mw that struck Iquique this past April 1st was less energetic than the 2010 Maule EQ, the available records show the same surface intensity demand for similar site conditions. The geotechnical and structural damage is much less than the one registered in 2010, the reason will probably be attributed to better site […]
Effect of 8.2 Mw Iquique Earthquake on Tall Buildings
An 8.2 Mw Earthquake struck the Chilean coast on April 1st. The epicenter was located 95km NW of Iquique. There are many 20+ story buildings in the affected area with similar characteristics than those affected in the last February 27th 2010 Maule’s earthquake, such as a high shear wall density and 20cm thick walls with none […]
News Articles
Powerful earthquake strikes off Chile, triggers tsunami by CNN (April 2, 2014) Experts: Strict building codes saved lives in powerful Chile earthquake by CNN (April 3, 2014) Iquique Hospital has 30% of it’s Infrastructure Damaged by Emol (Spanish) (April 2, 2014) Tsunami Warning Tests Galapagos Islands by Wired (April 3, 2014) EERI Member Hermann Fritz discusses tsunami risk […]
CIGIDEN Preliminary Report
The northern most part of Chile is tectonically characterized by the subduction of the Nazca Plate beneath the South American Plate. The convergence rate at this part is about 65 mm/yr along a vector oriented N75E (1, 2). In the area of the Pisagua‐Patache Seismic Sequence (PPSS), the seismic interaction at the interplate contact occurs […]
Red De Acelerógrafos Zona Norte, Terremoto Norte Chile 1 de Abril de 2014 Mw = 8.2, Informe Preliminar No. 1 (Spanish)
Read the Report: Red De Acelerógrafos Zona Norte, Terremoto Norte Chile 1 de Abril de 2014 Mw = 8.2, Informe Preliminar No. 1 (in Spanish) (1.75 MB PDF)
M8.2 Iquique, Chile Earthquake and Tsunami: Preliminary Reconnaissance Observations
The EERI Learning from Earthquakes (LFE) Committee, led by chair Ken Elwood (M. EERI, 1994), reached out to colleagues in Chile to compile this article for the EERI membership that summarizes their initial observations from the April 1, 2014, M8.2 earthquake and tsunami. On April 1, 2014 at 20:46:50 local time (23:46:50 UTC), a Mw8.2 megathrust […]
Drone Videos of Downtown Napa
California Earthquake Clearinghouse
News Articles
“Earthquake engineers and scientists headed for Napa quake zone” by Joshua Marrow (Wine Industry Insight, 8/24/14) “Tough rules help Napa schools ride quake” by Jeff Quackenbush (9/8/2014) “Winemakers evaluate Napa earthquake damage” by Jon Bonne (SF Chronicle, 8/25/14) LA Times Map of tagged buildings Napa earthquake shines light on Bay Area’s hazardous old masonry buildings […]
Federal Disaster Declaration