The 17 July 2006 Java tsunami earthquake

Charles James Ammon, Hiroo Kanamori, Thorne Lay, Aaron A. Velasco

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

The 17 July 2006 Java earthquake involved thrust faulting in the Java trench and excited a deadly tsunami (∼5-8 m) that inundated the southern coast of Java. The earthquake's size estimates vary significantly with seismic wave period: very long-period signals (300-500+ s) indicate a seismic moment of 6.7 × 1020 Nm (Mw = 7.8), Ms (∼20 s) = 7.2, mb (∼1 s) = 6.2, while shaking intensities (3-10 Hz) were ≤ MMIV. The large tsunami relative to Ms characterizes this event as a tsunami earthquake. Like previous tsunami earthquakes, the Java event had an unusually low rupture speed of 1.0-1.5 km/s, and occurred near the up-dip edge of the subduction zone thrust fault. Most large aftershocks involved normal faulting. The rupture propagated ∼200 km along the trench, with several pulses of shorter period seismic radiation superimposed on a smooth background rupture with an overall duration of ∼185 s.

Original languageEnglish (US)
Article numberL24308
JournalGeophysical Research Letters
Volume33
Issue number24
DOIs
StatePublished - Dec 28 2006

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tsunami
earthquakes
rupture
earthquake
Java earthquake 2006
trench
faulting
shaking
seismic moment
seismic waves
thrust fault
aftershock
coasts
seismic wave
thrust
subduction zone
dip
moments
coast
radiation

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Ammon, Charles James ; Kanamori, Hiroo ; Lay, Thorne ; Velasco, Aaron A. / The 17 July 2006 Java tsunami earthquake. In: Geophysical Research Letters. 2006 ; Vol. 33, No. 24.
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The 17 July 2006 Java tsunami earthquake. / Ammon, Charles James; Kanamori, Hiroo; Lay, Thorne; Velasco, Aaron A.

In: Geophysical Research Letters, Vol. 33, No. 24, L24308, 28.12.2006.

Research output: Contribution to journalArticle

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