The 4 September 2010 Mw
7.1 Darfield (New Zealand) Earthquake from ALOS PALSAR observations
Zhenhong Li
COMET+, School of Geographical and
Earth Sciences, University of Glasgow, United Kingdom
On
the 4th of September 2010, a large magnitude 7.1 earthquake struck the South
Island of New Zealand, west of the largest city of the Island, Christchurch.
COMET+ researchers, in collaboration with field geologists in New Zealand, are
measuring the ground displacements due to this event in order to
investigate the rupture on this previously unrecognised fault. For more details,
please refer to COMET+
New Zealand web article and BBC
Science.
Below
are some preliminary images about the 2010 Darfiled earthquake. The SAR images
used in this research were provided by the Japanese Aerospace Exploration
Agency (JAXA) under a JAXA AO project. The ownership of ALOS PALSAR data
belongs to METI (Ministry of Economy, Trade and Industry) and JAXA. These
images may be used for press purposes with the attribution "Li (2010),
University of Glasgow, COMET+" unless otherwise noted in the caption.
Figure 1. A wrapped
ALOS PALSAR interferogram from Path 336 (ascending: 080305-100911) (kml
file). Note: There might be an
orbital ramp, since predicted orbits were used in interferometric processing.
Figure 2. A wrapped ALOS PALSAR interferogram from Path 631 (descending: 080722-100912) (kml file). Note: There might be an orbital ramp, since predicted orbits were used in interferometric processing.
Figure 3. ALOS PALSAR range
offset map from Path 336 (ascending) (kml
file). Note: Range offset map
shows the range change in the satellite line of sight (LOS).
Figure 4. ALOS PALSAR range
offset map from Path 631 (descending) (kml
file). Note: Range offset map
shows the range change in the satellite line of sight (LOS).
Contact
Information
----------------------------------------------------------
Dr Zhenhong Li, FRSPSoc
School of Geographical and Earth Sciences, University of Glasgow
East Quadrangle, University Avenue, Glasgow G12 8QQ, United
Kingdom
Tel: +44 (0)141
330 2289; Fax: +44 (0)141 330 4894
Email: Zhenhong.Li@glasgow.ac.uk; Web: www.ges.gla.ac.uk/staff/zli
----------------------------------------------------------
Links
COMET+: Centre for the Observation and
Modelling of Earthquakes, Volcanoes and Tectonics