Event Supersite Chile

Event Supersite: M 7.8 Earthquake in Central Nepal

 

Location map of the Earthquake in Central Nepal Location map of M 7.8 Earthquake in Central Nepal - click map to open interactive map (source: USGS)

In the framework of the GEO-GSNL initiative, satellite and in situ data are provided by participating organisations for the generation of scientific products for the April 25, Mw 7.8 Nepal Gorkha earthquake.

An Event Supersite was generated for this event, its Point of Contact is Eric Fielding, JPL.

These pages contain information on how to access the data and the products which are generated by the Nepal Event Supersite scientific community.

While GEO-GSNL promotes full and open access for all, some of the data and products listed in these pages may be accessed only by registered scientists. 

To request or provide Data and Research Products write to:

eric.j.fielding@jpl.nasa.gov and stefano.salvi@ingv.it.

 

Data and other resources

Type of data   Data provider How to access Type of access
TerraSAR-X
DLR https://supersites.eoc.dlr.de/ Registered for Supersite community
Cosmo-SkyMed
ASI To be opened soon Registered for Supersite community
RADARSAT-2
CSA waiting for endorsement Registered for Supersite community
Sentinel-1
ESA https://scihub.esa.int/dhus/ Registered public
Landsat 8
NASA link Open unregistered
ALOS-2
JAXA Not provided to GSNL, only to CEOS Seismic Pilot  
GPS
Various UNAVCO Event Page Depends on data
Seismic
Various IRIS Special Event Page Open unregistered

 

Research products and other resources

Type of product
RADARSAT-2 derived products – interferograms, offset tracking, MAI
Product provider
Sergey Samsonov
How to access
ftp://ftp.ccrs.nrcan.gc.ca/ad/samsonov/Nepal2015/
Type of access
Public
 
Type of product
Coseismic GPS displacements and estimated distribution of slip (in meters) of the 25 April Gorkha (Nepal) earthquake. The distribution of slip is the result of a joint inversion of different independent geodetic datasets. The dataset used in this study includes:
  1. GPS data available through UNAVCO and processed by the ARIA data analysis using GIPSY-OASIS software and JPL Rapid and Final orbits and clock products (thanks to Jean-Philippe Avouac, John Galetzka, Jeff Genrich, and earthquake response support from NASA and NSF);
  2. Coseismic InSAR displacement field derived from Sentinel-1 images acquired on Apr. 17 and Apr. 20 2015 (thanks to Cristiano Tolomei);
  3. Coseismic InSAR displacement field derived from Radarsat-2 images acquired on Apr. 4 and Apr. 29 2015 (thanks to Sergei Samsonov and CCMEO/NRCAN/CSA contribution);
  4. Coseismic InSAR displacement field derived from ALOS-2 images acquired on Feb. 22 and May 3 2015 (Lindsey, E., R. Natsuaki, X. Xu, M. Shimada, H. Hashimoto, and D. Sandwell, (2015), Gorkha Mw 7.8 Earthquake: Line of Sight Deformation from ALOS-2 Interferometry, Seismological Research Letters, in prep.).
Product provider
Daniele Cheloni, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
How to access
Ask for the coseismic slip distribution map to daniele.cheloni@ingv.it
Type of access
Open public access
 
Type of product
Distribution of the Coulomb stress change resulting from the coseismic slip estimated on the fault plane. The black contours indicate the coseismic slip distribution (contour interval of 1000 mm). Red star indicates the position of the mainshock epicentre, while yellow stars indicate the position of the greatest afterschocks.
Product provider
Daniele Cheloni, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
How to access
Ask for the static stress changes map to daniele.cheloni@ingv.it
Type of access
Open public access
 
Type of product
Coseismic displacement field of the 25 April 2015, M 7.8 Gorkha, Nepal Earthquake, derived from descending Sentinel-1 images, acquired on Apr. 17 and Apr. 29, 2015.
Product provider
Cristiano Tolomei, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
How to access
Ask for the deformation map (raster data) to cristiano.tolomei@ingv.it Original Sentinel-1 data copyright of European Space Agency (ESA). The result contains Copernicus data (2015), TC_Sentinel_Data_31072014.pdf
Type of access
Open public access
 
Type of product
Coseismic displacement field of the 25 April 2015, M 7.8 Gorkha, Nepal Earthquake, derived from 4 ascending ALOS2 images, acquired on Feb. 21 and May 2, 2015.
Product provider
Cristiano Tolomei, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
How to access
This image can be used under the Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) license. Ask for the deformation map (raster data) to cristiano.tolomei@ingv.it. Original ALOS-II data copyright of Japanese Aerospace Agency (JAXA) received under CEOS Seismic Pilot, Objective C.
Type of access
Open public access
 
Type of product
Preliminary ALOS-2 ScanSAR interferogram from path 48 acquired Feb. 21 and May 2, 2015 KMZ image
Product provider
Eric J. Fielding and Cunren Liang, ARIA project, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
How to access
ARIA_Coseismic_ALOS2_D048_20150221-0502_1_2m_color.kmz
This image can be used under the Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) license.
Digital data for this interferogram will be made available soon after file formatting is complete.
Original ALOS-2 data copyright (2015) JAXA.
Type of access
Open public access
 
Type of product
Coseismic displacement field related to the 25 April 2015, M 7.8 Gorkha, Nepal Earthquake, derived from ALOS-II radar images on Feb. 21 and May 2, 2015
Product provider
Mahdi Motagh
How to access
Original ALOS-II data copyright of Japanese Aerospace Agency (JAXA), Received and processed at GFZ Potsdam under the research proposal No. P1161002
Type of access
Open (write to motagh@gfz-potsdam.de to obtain access)

 

Event Supersite Community

Scientist Affiliation
Sergey Samsonov Canada Centre for Mapping and Earth Observation,
Natural Resources Canada
Eric J. Fielding Jet Propulsion Laboratory
M/S 300-233
4800 Oak Grove Drive
Pasadena, CA 91109
USA
Mahdi Motagh Department of Geodesy and Remote Sensing
Helmholtz Center Potsdam, GFZ German Research Center for Geosciences
Telegrafenberg Haus A17
14473 Potsdam, Germany
William (Bill) Barnhart Department of Earth and Environmental Sciences
University of Iowa - USA
Manoochehr Shirzaei School of Earth and Space Exploration
Arizona State University
Tempe, AZ, 85287- USA
Cristiano Tolomei Istituto Nazionale di Geofisica e Vulcanologia
Via di Vigna Murata, 605
00143 Roma - Italy
Christian Bignami Istituto Nazionale di Geofisica e Vulcanologia
Via di Vigna Murata, 605
00143 Roma - Italy

 

Log book

Event Name Date Notes
RADARSAT-2 derived products  (interferograms, offset tracking, MAI) made available by NRCAN Sergey Samsonov June 24, 2015 Products will be available for 1 year until June 24, 2016. See Product page for download instructions.
CEOS Data Coordination Team formally accepts Nepal Event Supersite. Brenda Jones, USGS May 19, 2015 The letter of acceptance lists the image quotas allocated for the Supersite by the various CEOS agencies.
UNOSAT Makes Sure Earthquake Relief and Early Recovery in Nepal can Count on Integrated Geo-Spatial Information Einar Bjorgo May 8, 2015 Relevant links with data and products:
ALOS-2 data processed by GFZ Potsdam M. Motagh May 7, 2015 See product page
TerraSAR X acquisition plan submitted to DLR M. Motagh April 30, 2015 Stripmap data. Possible Scansar coverage is under evaluation.
Nepal Event Supersite proposal submitted to CEOS DCT E.J. Fielding April 29, 2015 Proposal draft v 1.0
COSMO-SkyMed acquisition plan submitted to ASI S. Salvi April 29, 2015 16 day repeat on the ascending stripmap beams shown here. Acquisition planned till end of August 2015
Informal request to endorse Event Supersite submitted to CEOS DCT S.Salvi April 26, 2015