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Earth Institute Research Projects

Studies of Unusual Earthquakes: Volcanos and Landslides

Lead PI: Goran Ekstrom , Meredith Nettles

Unit Affiliation: Seismology, Geology & Tectonophysics, Lamont-Doherty Earth Observatory (LDEO)

July 2010 - June 2013
Inactive
Global
Project Type: Research

DESCRIPTION: The project has three objectives: 1) discriminate volcano and landslide earthquakes from other earthquakes; 2) relate the anomalous earthquakes in volcanic regions to changes in the geometry and behavior of magmatic plumbing systems; 3) improve the methodology for determining trajectory and mass of landslides and apply it to several known and implied landslide events.

OUTCOMES: Found that seismic analysis can be used to characterize many mass-wasting events and found that seismic predictions of sliding mass events match observations well.

SPONSOR:

National Science Foundation (NSF)

FUNDED AMOUNT:

$247,543

RESEARCH TEAM:

Colin Stark

WEBSITE:

https://www.nsf.gov/awardsearch/showAward?AWD_ID=0944055&HistoricalAwards=false

PUBLICATIONS:

A Shuler, G Ekstrom, M Nettles. "Physical mechanisms for vertical-CLVD earthquakes at active volcanoes," Journal of Geophysical Research, v.118, 2013, p. 1569. doi:10.1002/jgrb.50131

A Shuler, M Nettles, G Ekstrom. "Global observations of vertical-CLVD earthquakes at active volcanoes," Journal of Geophysical Research, v.118, 2013, p. 138. doi:10.1029/2012JB009721

S A Veitch, M Nettles. "Spatial and temporal variations in Greenland glacial-earthquake activity, 1993-2010," Journal of Geophysical Research, v.117, 2012, p. F04007. doi:10.1029/2012JF002412

A Shuler and M Nettles. "Earthquake source parameters for the 2010 western Gulf of Aden rifting episode," Geophysical Journal International, 2012. doi:10.1111/j.1365-246X.2012.05529.x

d'Oreye, N; Gonzalez, PJ; Shuler, A; Oth, A; Bagalwa, L; Ekstrom, G; Kavotha, D; Kervyn, F; Lucas, C; Lukaya, F; Osodundu, E; Wauthier, C; Fernandez, J. "Source parameters of the 2008 Bukavu-Cyangugu earthquake estimated from InSAR and teleseismic data," GEOPHYSICAL JOURNAL INTERNATIONAL, v.184, 2011, p. 934. View record at Web of Science doi:10.1111/j.1365-246X.2010.04899.

KEYWORDS

landslides seismology geology and tectonics seismology volcanoes magmatic plumbing systems slow earthquakes earthquakes

THEMES

Restless earth