Magnitude 9.0 Sumatra-Andaman Islands Earthquake

90 20 15° EXPLANATION 26 December 2004 MT Selution (HRV)) Gend 40-44 45-43 450-54 55- 65-81 Lagata esa 2 V T-200 Faber Publiert, 20 Th A Fin Fault Model 201 MYANMAR (CURMA) Paqu Hor Campard NANGON Ringen Mobal THAILAND (Mbunit 100' 20 15- ulaka Andaman Isla Tent The buri This chan La A INDIA A Andaman Bagin ANDAMAN SEA R Nicol lands Cror Nahar Ph MALAYSIA Strait of Mate SUND TRENCH FINITE FAULT MODEL Sumatra INDONESIA TRT H Finite Fault Model of the M9.0 Sumatra-Andaman Islands Earthquake of Dec 26, 2004 The USGS finite fault model shown here implies that the width of the earthquake rupture, measured perpendicular to the Sunda trench, was about 150 kilometers, and that the maximum displacement on the fault plane during the 12-26-04 event was about 20 meters. ■ The sea floor overlying the thrust fault would have been uplifted by several meters as a result of the earthquake. The 12-26-04 event has seen some of the largest aftershocks ever recorded in modern time. 100 2:00 SCALE 1:5.500.000 with Extr 400 DISCLAIMER 800

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