Coseismic and postseismic displacements from the Mozambique earthquake of 22 February 2006 detected by InSAR

Manabu Hashimoto; Yo Fukushima; Taku Ozawa

Coseismic and postseismic displacements from the Mozambique earthquake of 22 February 2006 detected by InSAR

Manabu Hashimoto, Yo Fukushima, Taku Ozawa

IRIDeS - Risk Evaluation and Disaster Mitigation Research Division

Research output: Contribution to journal › Conference article › peer-review

Abstract

We analyzed ENVISAT and ALOS/PALSAR images before and after the 22 February 2006 Mozambique earthquake (Mw7.0) to obtain coseismic and postseismic displacements. Although coherence of interferometric image is low due to C-band of ENVISAT/ASAR, we obtained coseismic displacement larger than 40cm around the surface rupture. A fault model with two segments explains the observed fringe pattern fairly well and suggests that source fault is significantly larger than the surface rupture. Postseismic displacement was also observed till the end of 2006. Especially, about 50km long linear offset in fringe of 1-2cm was revealed north of the surface rupture.

Original language	English
Journal	European Space Agency, (Special Publication) ESA SP
Issue number	649 SP
Publication status	Published - 2008
Event	Fringe 2007 Workshop "Advances in SAR Interferometry from Envisat and ERS Missions" - Frascati, Italy Duration: 2007 Nov 26 → 2007 Nov 30

Keywords

ALOS/PALSAR
Coseismic displacement
ENVISAT
InSAR
Mozambique earthquake
Postseismic displacement

Cite this

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title = "Coseismic and postseismic displacements from the Mozambique earthquake of 22 February 2006 detected by InSAR",

abstract = "We analyzed ENVISAT and ALOS/PALSAR images before and after the 22 February 2006 Mozambique earthquake (Mw7.0) to obtain coseismic and postseismic displacements. Although coherence of interferometric image is low due to C-band of ENVISAT/ASAR, we obtained coseismic displacement larger than 40cm around the surface rupture. A fault model with two segments explains the observed fringe pattern fairly well and suggests that source fault is significantly larger than the surface rupture. Postseismic displacement was also observed till the end of 2006. Especially, about 50km long linear offset in fringe of 1-2cm was revealed north of the surface rupture.",

keywords = "ALOS/PALSAR, Coseismic displacement, ENVISAT, InSAR, Mozambique earthquake, Postseismic displacement",

author = "Manabu Hashimoto and Yo Fukushima and Taku Ozawa",

year = "2008",

language = "English",

journal = "European Space Agency, (Special Publication) ESA SP",

issn = "0379-6566",

publisher = "European Space Agency",

number = "649 SP",

note = "Fringe 2007 Workshop {"}Advances in SAR Interferometry from Envisat and ERS Missions{"} ; Conference date: 26-11-2007 Through 30-11-2007",

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TY - JOUR

T1 - Coseismic and postseismic displacements from the Mozambique earthquake of 22 February 2006 detected by InSAR

AU - Hashimoto, Manabu

AU - Fukushima, Yo

AU - Ozawa, Taku

PY - 2008

Y1 - 2008

N2 - We analyzed ENVISAT and ALOS/PALSAR images before and after the 22 February 2006 Mozambique earthquake (Mw7.0) to obtain coseismic and postseismic displacements. Although coherence of interferometric image is low due to C-band of ENVISAT/ASAR, we obtained coseismic displacement larger than 40cm around the surface rupture. A fault model with two segments explains the observed fringe pattern fairly well and suggests that source fault is significantly larger than the surface rupture. Postseismic displacement was also observed till the end of 2006. Especially, about 50km long linear offset in fringe of 1-2cm was revealed north of the surface rupture.

AB - We analyzed ENVISAT and ALOS/PALSAR images before and after the 22 February 2006 Mozambique earthquake (Mw7.0) to obtain coseismic and postseismic displacements. Although coherence of interferometric image is low due to C-band of ENVISAT/ASAR, we obtained coseismic displacement larger than 40cm around the surface rupture. A fault model with two segments explains the observed fringe pattern fairly well and suggests that source fault is significantly larger than the surface rupture. Postseismic displacement was also observed till the end of 2006. Especially, about 50km long linear offset in fringe of 1-2cm was revealed north of the surface rupture.

KW - ALOS/PALSAR

KW - Coseismic displacement

KW - ENVISAT

KW - InSAR

KW - Mozambique earthquake

KW - Postseismic displacement

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M3 - Conference article

AN - SCOPUS:47249097439

SN - 0379-6566

JO - European Space Agency, (Special Publication) ESA SP

JF - European Space Agency, (Special Publication) ESA SP

IS - 649 SP

T2 - Fringe 2007 Workshop "Advances in SAR Interferometry from Envisat and ERS Missions"

Y2 - 26 November 2007 through 30 November 2007

ER -

Coseismic and postseismic displacements from the Mozambique earthquake of 22 February 2006 detected by InSAR

Abstract

Keywords

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