M4.0
Depth:
10.0 km
M4.0 Earthquake near BIAK REGION, INDONESIA (Indonesia)
About this earthquake
On August 26, 2025 at 22:26 UTC, a magnitude M4.0 earthquake occurred near BIAK REGION, INDONESIA (Indonesia). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.
The event was recorded by EMSC. Indonesia: over the past 24 hours, QuakeMap24 logged 53 earthquakes, the strongest at M4.9.
Map
Depth profile
Shallow
10 km
10 km — shallower than the regional average (49.6 km)
Regional average: 49.6 km
Why depth matters
Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.
Depth classes per USGS
Historic earthquake map · Indonesia
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Country statistics · Indonesia
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Stats (last 24h)
Global (24h)
557
Country (24h)
Indonesia
53
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