4.4

M4.4 Earthquake 49 km SE of Yilan, TaiwanAugust 22, 2026

2026-08-22 03:40:14 UTC (45 min ago) · approx. 11:40 AM UTC+8 local

MagnitudeM4.4(mwr)
Time03:40 UTC11:40 AM UTC+8
Depth38.3 kmshallow crustal
Coordinates24.424°, 122.081°
Felt by4DYFI responses
Status✓ Reviewed by USGS

On August 22, 2026 at 03:40 UTC, a magnitude 4.4 shallow crustal earthquake struck 49 km SE of Yilan, Taiwan, at a depth of 38.3 km and coordinates 24.4244°, 122.0811°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 24.42°, 122.08°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 4 citizen responses 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 M4.4 earthquake near 49 km SE of Yilan, Taiwan

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

Earthquake Details

Magnitude
4.4 mwr
Depth
38.3 km
shallow crustal
Location
24.4244°N
122.0811°E
Felt Reports
4
DYFI responses
Community Intensity
2.7
CDI from reports

Technical Information

Event ID
us6000tmqf
Event Type
earthquake
Status
✓ Reviewed
Significance
299
Stations Used
40
Azimuthal Gap
56.0°
Min Station Distance
0.509°
RMS Residual
0.94 sec
Last Updated
2026-08-22 04:18:00 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Yilan, Taiwan?

The magnitude 4.4 earthquake that struck 49 km SE of Yilan, Taiwan on August 22, 2026 at 03:40 UTC had a depth of 38.3 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000tmqf). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 22, 2026). M4.4 Earthquake 49 km SE of Yilan, TaiwanAugust 22, 2026. Retrieved August 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmqf/