Navigation Links
Satellite data look behind the scenes of deadly earthquake
Date:10/15/2009

Using satellite radar data and GPS measurements, Chinese researchers have explained the exceptional geological events leading to the 2008 Wenchuan Earthquake that killed nearly 90 000 people in China's Sichuan Province.

"One of the very fundamental issues for understanding an earthquake is to know how the rupture is distributed on the fault plane, which is directly related to the amount of ground shaking and the damage it could cause at the surface," said Dr Jianbao Sun of the Institute of Geology, China Earthquake Administration (IGCEA).

To learn this, Sun and Prof. Zhengkang Shen of IGCEA and Peking University's Department of Geophysics, and collaborators acquired two kinds of satellite radar data: Advanced Synthetic Aperture Radar (ASAR) data in C-band from ESA's Envisat satellite and Phased Array type L-band Synthetic Aperture Radar (PALSAR) data from Japan's ALOS satellite.

Applying a technique called SAR Interferometry (InSAR) on the data, the researchers produced a set of 'interferogram' images covering the entire coseismic rupture region and its vicinity. This interferometric map revealed the amount and scope of surface deformation produced by the earthquake.

"This is perhaps the very first time people have seen the complete deformation field produced by an earthquake on such a large scale," Sun said.

InSAR involves combining two or more radar images of the same ground location in such a way that very precise measurements down to a scale of a few centimetres can be made of any ground motion taking place between image acquisitions. Coloured interferograms usually appear as rainbow fringe patterns.

The researchers combined these SAR satellite data with GPS measurements and developed a model that shows fault geometry and rupture distribution of the Longmen Shan fault zone, a series of parallel faults that run for about 400 km from southwest to northeast in the region. The earthquake that struck on 12
'/>"/>

Contact: Mariangela D'Acunto
mariangela.dacunto@esa.int
39-069-418-0856
European Space Agency
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Satellites witness lowest Arctic ice coverage in history
2. UNCCD recognizes importance of satellites for combating desertification
3. Satellites help ensure efficient use of pesticides
4. Telemedicine: Health alert via satellite
5. ASU researchers use NASA satellites to improve pollution modeling
6. New radar satellite technique sheds light on ocean current dynamics
7. NASA satellite measures pollution from east Asia to North America
8. Satellites take sustainability to new heights
9. GMES Sentinel-2 satellite contract signed
10. Archaeologist uses satellite imagery to explore ancient Mexico
11. Satellites illuminate pollutions influence on clouds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/10/2014)... WINSTON-SALEM, N.C. , Dec. 9, 2014  Wake Forest ... medical education building for its School of Medicine. Funding ... a larger capital campaign that will be publicly launched ... will be located in the former 60 series R.J. ... Forest Innovation Quarter. Construction will begin immediately with plans ...
(Date:12/10/2014)... 9, 2014     ...   Jifflenow, a ... solutions for business-to-business (B2B) events, today announced a ... mobile near-field communication (NFC), Bluetooth low energy (BLE), ... http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow will integrate its ...
(Date:12/4/2014)... , Dec. 3, 2014  Crossmatch™, a leading ... that its DigitalPersona ® Pro Enterprise software ... been deployed throughout First Bank branch locations in ... South Carolina and Virginia. First Bank, a ... Southern Pines, North Carolina , selected the ...
Breaking Biology News(10 mins):Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3
... YORK (Jan. 23, 2009) Actor and pancreatic cancer ... result of his compromised immune system underscores the sensitivity ... of a disease, rather than the disease itself. ... like an open wound. Consequently, the body has developed ...
... CAMBRIDGE, Mass., Jan. 22, 2009 -- Bioengineers at Harvard ... tumor-specific antigens and implanted under the skin can reprogram ... research -- which ridded 90 percent of mice of ... the rodents within 25 days -- represents the most ...
... PROVIDENCE, R.I. [Brown University] Brown University researchers have ... the aging process. The finding by Stephen Helfand ... the puzzle that Helfand, a professor of biology, molecular ... Back then, he identified a mutation in the Indy ...
Cached Biology News:Research elucidates way lungs fight bacteria and prevent infection 2Implants mimic infection to rally immune system against tumors 2Scientists unlock possible aging secret in genetically altered fruit fly 2
(Date:12/22/2014)... Dec. 22, 2014  Alternative Energy & Environmental ... has signed a letter of intent to acquire ... and patented a nanotechnology-based development platform used to ... enable rapid on-site collection and testing to identify ... issues in an immediate, non-invasive and cost-effective manner. ...
(Date:12/22/2014)... The American Journal of ... research, reviews and editorials addressing developments and pathways ... published a provocative article exploring the role of ... potential treatment of prostate cancer. , The ... the possibility that there could be a connection ...
(Date:12/19/2014)... December 19, 2014 Bioject Medical ... and manufacturer of needle-free injection technology, today announced ... Immunomic Therapeutics, Inc. (“ITI”) for ITI to use ... its LAMP™ vaccine platform. , In the ... Worldwide license to the Biojector®-2000 that triggers based ...
(Date:12/19/2014)... 19, 2014 Naurex Inc., a biopharmaceutical company ... diseases of the central nervous system, today announced that ... officer, will present at the 33 rd annual ... place at 3:00 p.m. PST on Tuesday, January 13, ... San Francisco, Calif. About ...
Breaking Biology Technology:ALNE Announces Intention To Acquire BioTechPharma 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 3Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 4Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2
... ... CEO Sally Van Doren, PharmD, will present at the 9th DIA Conference for Contemporary Pharmacovigilance ... Van Doren will present on the topic of the Integrated Summary of Safety. , ... Emeryville, CA (PRWEB) November 18, 2009 ...
... 17 November 2009 - Monetary gain stimulates activity in the ... known to activate an area of the brain called the ... 2010 issue of Cortex , published by ... striatum activation in volunteers performing a monetary task and found ...
... , HAIKOU CITY, China, Nov. ... CPHI ), which develops,manufactures, and markets specialty pharmaceutical products ... Murray, Carret & Co. 2009 China,Growth Conference, to be held ... Management is scheduled to present at 4:20 pm ET ...
Cached Biology Technology:BioSoteria CEO to Present at Drug Safety Conference 2Monetary gain and high-risk tactics stimulate activity in the brain 2China Pharma Holdings, Inc. to Present at Brean Murray China Growth Conference 2
...
Small bottle for hybridization 150 x 35mm...
... is a powerful technology platform that automates ... High quality sample preparation can be ... The Xcise is a powerful technology platform ... proteome analysis. It combines the functions of ...
... Acquire images with any of UVP's ... load the Doc-It 1D Analysis software onto ... many image analysis functions and enhancement tools. ... and band finding algorithms for quick and ...
Biology Products: