4.4

M4.4 Earthquake 30 km SW of Hualien City, TaiwanJune 23, 2025

2025-06-23 18:00:57 UTC (2025-06-23) · approx. 2:00 AM UTC+8 local

MagnitudeM4.4(mwr)
Time18:00 UTC2:00 AM UTC+8
Depth24.9 kmshallow crustal
Coordinates23.767°, 121.418°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On June 23, 2025 at 18:00 UTC, a magnitude 4.4 shallow crustal earthquake struck 30 km SW of Hualien City, Taiwan, at a depth of 24.9 km and coordinates 23.7666°, 121.4181°.

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 23.77°, 121.42°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 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 30 km SW of Hualien City, Taiwan

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

Earthquake Details

Magnitude
4.4 mwr
Depth
24.9 km
shallow crustal
Location
23.7666°N
121.4181°E
Felt Reports
2
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us7000q88r
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
49
Azimuthal Gap
83.0°
Min Station Distance
0.389°
RMS Residual
0.74 sec
Last Updated
2025-09-02 21:23:42 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Hualien City, Taiwan?

The magnitude 4.4 earthquake that struck 30 km SW of Hualien City, Taiwan on June 23, 2025 at 18:00 UTC had a depth of 24.9 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: us7000q88r). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, June 23, 2025). M4.4 Earthquake 30 km SW of Hualien City, TaiwanJune 23, 2025. Retrieved September 2, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000q88r/