Strong earthquake · December 27, 2025

M 6.6 Earthquake, 29 km ESE of Yilan, Taiwan

A magnitude 6.6 (mww) earthquake struck 29 km ESE of Yilan, Taiwan on December 27, 2025 at 15:05 UTC, at a depth of about 63 km (39 mi), according to the USGS. 439 people sent "Did You Feel It?" reports. The USGS PAGER alert level is green.

Updated Apr 16, 2026, 8:47 PM EDT (USGS snapshot)

M 6.6 mww PAGER Green Tsunami flag set Reviewed by a seismologist

This is not an early-warning system. For tsunami warnings see tsunami.gov; for emergencies follow local authorities.

Event details
Magnitude	6.6 mww (Strong)
Time (UTC)	Dec 27, 2025, 15:05:55 UTC
Local time at epicenter	Dec 27, 2025, 11:05 PM GMT+8
U.S. Eastern Time	Dec 27, 2025, 10:05 AM EST
Location	29 km ESE of Yilan, Taiwan
Coordinates	24.684° N, 122.035° E
Depth	63.0 km (39.1 mi), shallow
Felt reports	439 "Did You Feel It?" responses · max reported intensity 5.6
ShakeMap intensity	MMI 6.1 (estimated maximum)
Tsunami flag	Yes (see note below)
PAGER alert	Green
USGS event ID	us7000rl2n

Source: USGS Earthquake Hazards Program, event us7000rl2n. Last updated by the USGS Apr 17, 2026, 00:47:10 UTC.

USGS event page View on OpenStreetMap

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.

Other recent earthquakes within 300 km

Nearby events from the past 30 days (M 4.5+), past 7 days (M 2.5+), and past year (M 6+)
Magnitude	Location	Time	Depth
M 4.9	40 km ESE of Hualien City, Taiwan	Oct 23, 2026, 4:58 PM EDT 0 sec ago	10.0 km
M 4.9	35 km ESE of Hualien City, Taiwan	Oct 23, 2026, 4:48 PM EDT 0 sec ago	13.8 km
M 4.7	76 km NNE of Yonakuni, Japan	Oct 5, 2026, 9:30 AM EDT 0 sec ago	154.7 km
M 4.5	63 km S of Yonakuni, Japan	Sep 30, 2026, 6:37 AM EDT 0 sec ago	32.6 km
M 5.5	75 km S of Yonakuni, Japan PAGER green	Sep 30, 2026, 1:00 AM EDT 0 sec ago	10.0 km
M 4.6	35 km SSE of Hualien City, Taiwan	Sep 28, 2026, 2:20 PM EDT 0 sec ago	18.8 km
M 6.0	2025 Taitung, Taiwan Earthquake PAGER green	Dec 24, 2025, 4:47 AM EST 114 days ago	8.0 km

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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