Sumatra Subduction & Fault
The Indo-Australian plate subducts obliquely beneath the Sunda block, driving both the 2004 Indian Ocean megathrust (Mw 9.1) on the subduction zone and high slip-rate right-lateral shearing along the 1,900 km Great Sumatran Fault.
Danger Level (72h)
72-hour composite hazard forecast
Recent Quakes (14d)
Recorded in the selected 14d period
Max Magnitude (14d)
Largest earthquake in the selected 14d period
Tectonic Profile
Seismotectonic hazard assessment, structural exposure & historical context
Click to locate on map
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Living within seismically active radius (~300 km)
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Mixed construction stock with regional engineering standards
Subduction Zone
Major plate boundary with high strain accumulation
Seismically Stable Period
No significant earthquakes recorded in the selected 14d period.
Seismic Activity
Every recorded earthquake in this area — filter by time range and sort by time or severity.
Regional Volcanism & Monitored Vents
Active vents and Holocene volcanic structures within the monitored boundary (Sumatra Subduction & Fault) · 17