4.1

M4.1 Earthquake 9 km ENE of Yilan, TaiwanApril 25, 2026

2026-04-25 07:16:34 UTC (4 hours ago) · approx. 3:16 PM UTC+8 local

MagnitudeM4.1(mwr)
Time07:16 UTC3:16 PM UTC+8
Depth70.2 kmintermediate depth
Coordinates24.800°, 121.835°
Felt by1DYFI response
Status✓ Reviewed by USGS

On April 25, 2026 at 07:16 UTC, a magnitude 4.1 intermediate depth earthquake struck 9 km ENE of Yilan, Taiwan, at a depth of 70.2 km and coordinates 24.7997°, 121.8351°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 24.80°, 121.84°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.1 earthquake near 9 km ENE of Yilan, Taiwan

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.1 mwr
Depth
70.2 km
intermediate depth
Location
24.7997°N
121.8351°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us6000sss5
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
36
Azimuthal Gap
45.0°
Min Station Distance
0.352°
RMS Residual
0.69 sec
Last Updated
2026-04-25 07:32:32 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Yilan, Taiwan?

The magnitude 4.1 earthquake that struck 9 km ENE of Yilan, Taiwan on April 25, 2026 at 07:16 UTC had a depth of 70.2 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us6000sss5). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 25, 2026). M4.1 Earthquake 9 km ENE of Yilan, TaiwanApril 25, 2026. Retrieved April 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000sss5/