Damage Assessment and Geographic Reference Maps
See the Maps: Earthquake in Turkey on October 23, 2011
GEO’s Eastern Turkey Event Supersite
Se the Information: GEO’s Van (Eastern Turkey) Event Website
Aftershocks and Slip Distribution Results
Eric Bergman’s relocations (red); and Turkey’s aftershock locations (yellow). Cross-sections are taken perpendicular to WCMT planes. The slip distribution is pinned to an early hypocenter relocation from Eric, and a depth of 16 km. More information on this link: https://earthquake.usgs.gov/earthquakes/eventpage/usp000j9rr#finite-fault Figure 1. Moment rate function. Figure 2. Slip distribution map. Figure […]
Up-to-date aftershock catalogs
Recent seismicity lists and maps can be obtained from various places. The various links to web-services use a pre-selected a geographic box that encompasses all of Nepal, namely min latitude = 26.096N, max latitude = 30.581N, min longitude = 79.849E, max longitude = 88.330E. National Seismological Centre of Nepal, magnitude 4 and bigger detected with local […]
Ground motion measurements in Kathmandu
A single U.S.G.S. NetQuakes instrument was installed in Kathmandu with help from John Galetzka (now at Unavco) and the U.S. State Department several years ago. It has recorded the main shock and has triggered on many aftershocks. The peak acceleration at this instrument’s location during the Main Shock was less than 0.2g, however, PGV […]
CESMD strong motion data from NetQuakes station at the American Club in Kathmandu
Colleagues from USGS including Cecily Wolfe have uploaded strong motion data from NetQuakes into CESMD web site. Lamjung_us20002926 2015-04-25 06:11:26.270 UTC 28.147 84.708 7.8 NepalAftershock1_25Apr2015 2015-04-25 06:45:21 UTC 28.193 84.865 6.6 NepalAftershock2_25Apr2015 2015-04-25 06:56:05 UTC 27.910 085.650 5.5 NepalAftershock3_25Apr2015 2015-04-25 08:55:56 UTC 27.636 085.503 5.3 NepalAftershock4_25Apr2015 2015-04-25 17:42:51 UTC 28.262 085.774 5.4 NepalAftershock5_25Apr2015 2015-04-25 23:16:15 UTC 27.805 084.874 […]
Ground motion data from KATNP now also available for the two large May 12 events.
The Center for Engineering Strong Motion Data (CESMD) also posted data for the two large aftershocks on May 12th. Time stamps of the records may not be accurate. NepalAftershock1_12May2015 2015-05-12 07:05:19 UTC 27.837 086.077 7.3 NepalAftershock2_12May2015 2015-05-12 07:36:53 UTC 27.618 086.166 6.3 CESMD: List of all available earthquakes in 2015 Curated topics from […]
Video, main shock seismic record lined up with security camera footage
Engineering firm Exponent created an interesting video by synchronizing the recording of the main shock by station KATNP with video footage recorded in a building nearby (note: seismic instrument is NOT in the same building). You can see the server racks move relative to the floor (the floor is moving of course, so is the […]
Lessons of the 2015 Nepal Earthquake Disaster
When the 7.8 Mw earthquake struck on 25 April 2015 (Saturday), the author was with his family at the Safari Narayani Hotel on the bank of the Rapti river bordering the Chitwan National Park in south Nepal. Although the ground shaking lasted there for more than one minute, it was relatively moderate and did not cause any visible […]
Report on Impacts from CEDIM Forensic Earthquake Analysis Group
Read the Report: Comparing the current impact of the Van Earthquake to past earthquakes in Eastern Turkey (2.30 MB PDF)