Strong earthquake · September 11, 2026
M 6.5 Earthquake, 121 km NNE of Teluknaga, Indonesia
A magnitude 6.5 (mww) earthquake struck 121 km NNE of Teluknaga, Indonesia on September 11, 2026 at 21:23 UTC, at a depth of about 372 km (231 mi), according to the USGS. 21 people sent "Did You Feel It?" reports. The USGS PAGER alert level is green.
Updated Oct 15, 2026, 3:50 PM EDT (USGS snapshot)
This is not an early-warning system. For tsunami warnings see tsunami.gov; for emergencies follow local authorities.
| Magnitude | 6.5 mww (Strong) |
|---|---|
| Time (UTC) | |
| U.S. Eastern Time | Sep 11, 2026, 5:23 PM EDT |
| Location | 121 km NNE of Teluknaga, Indonesia |
| Coordinates | 5.027° S, 106.868° E |
| Depth | 372.0 km (231.2 mi), deep |
| Felt reports | 21 "Did You Feel It?" responses · max reported intensity 3.4 |
| ShakeMap intensity | MMI 3.5 (estimated maximum) |
| Tsunami flag | No |
| PAGER alert | Green |
| USGS event ID | us7000tgrk |
Source: USGS Earthquake Hazards Program, event us7000tgrk. Last updated by the USGS Oct 15, 2026, 19:50:58 UTC.
What the numbers mean
- Tsunami flag
- The USGS sets this flag for large events in oceanic regions. It does not mean a tsunami happened or will happen. Official tsunami warnings come from the NOAA Tsunami Warning Centers at tsunami.gov.
- PAGER alert
- An automatic USGS estimate of likely fatalities and economic losses: green (little or none), yellow, orange, or red (highest). It can change as more data arrives.
- Felt reports
- People who felt shaking can describe it through the USGS "Did You Feel It?" survey on the event page. The count grows for hours or days after an event.
- Local time
- The local time at the epicenter is not shown because the area spans more than one time zone or is offshore.
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After an earthquake
Expect aftershocks. If you are near the coast and feel strong or long shaking, move to high ground right away without waiting for an official warning. Check on neighbors and follow instructions from local emergency officials.
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