M6.9 earthquake in Indonesia on August 15, 2026

A magnitude 6.9 earthquake struck on August 15, 2026 at 10:54 UTC. According to USGS the epicenter was 9 km west of Pematangsiantar, at a depth of 175 km. The focus was at intermediate depth, which softens the shaking at the surface compared with a shallow quake of the same size.

6.9magnitude
175 kmdepth
10:54time UTC
greenUSGS alert
Live earthquake map →

Key facts

44 people reported feeling it to USGS. The USGS PAGER system issued a green alert, expecting little impact.

Nearest cities

  • Pematangsiantar (Indonesia)10 km
  • Tebingtinggi (Indonesia)43 km
  • Perbaungan (Indonesia)65 km
  • Kisaran (Indonesia)70 km
  • Percut (Indonesia)72 km

Did you feel an earthquake?

Report it to seismologists. These reports help work out quickly where the shaking was strongest. It takes a minute.

Report to USGS (Did You Feel It?)Report to EMSC (LastQuake)

Aftershocks

So far USGS has recorded no aftershocks of magnitude 4.5 or more within 150 km.

Regional history

Since 1976 there have been 36 earthquakes of magnitude 6 or more within 300 km. The strongest was M8.6 (March 28, 2005).

  • M8.6 · March 28, 2005231 km
  • M7.8 · April 6, 2010225 km
  • M7.0 · June 20, 1976300 km
  • M6.9 · May 19, 2005243 km
  • M6.7 · September 5, 2011121 km

See also

Live earthquake mapAll earthquakes todayEarthquakes in IndonesiaWeather in PematangsiantarEvent details at USGS

Source: USGS Earthquake Hazards Program (public domain). Seismologists may still revise the data. Data from Aug 22, 12:01 UTC.