USGS
Magnitude 6.9 earthquake — 15 km NNW of Pematangsiantar, Indonesia
A magnitude 6.9 earthquake occurred near 15 km NNW of Pematangsiantar, Indonesia on 2026-08-15 10:54 UTC at a depth of about 173 km, according to the U.S. Geological Survey.
Updated 2026-08-15 12:23 UTC
- Magnitude: M 6.9
- Location: 15 km NNW of Pematangsiantar, Indonesia
- Time (UTC): 2026-08-15 10:54 UTC
- Depth: 173 km
- Coordinates: 3.09, 99.02
- Felt reports: 32 “Did You Feel It?” reports
- PAGER alert: GREEN
- Tsunami: No tsunami warning flagged
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Frequently asked questions
How strong was the 15 km NNW of Pematangsiantar, Indonesia earthquake?
It measured magnitude 6.9 on the USGS scale. Shaking felt locally also depends on depth and distance.
Was there a tsunami?
No tsunami warning was flagged by USGS. Always follow official local guidance.
How can I get alerts for future earthquakes here?
Install the free SeismoWatch Android app, draw a box over the area, set a minimum magnitude, and turn alerts on.