4.3

M4.3 Earthquake 15 km S of Hualien City, TaiwanApril 22, 2024

2024-04-22 20:07:03 UTC (2024-04-22) · approx. 4:07 AM UTC+8 local

MagnitudeM4.3(mb)
Time20:07 UTC4:07 AM UTC+8
Depth21.5 kmshallow crustal
Coordinates23.840°, 121.594°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 22, 2024 at 20:07 UTC, a magnitude 4.3 shallow crustal earthquake struck 15 km S of Hualien City, Taiwan, at a depth of 21.5 km and coordinates 23.8402°, 121.5935°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 23.84°, 121.59°

Earthquake Details

Magnitude
4.3 mb
Depth
21.5 km
shallow crustal
Location
23.8402°N
121.5935°E

Technical Information

Event ID
us6000muym
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
36
Azimuthal Gap
75.0°
Min Station Distance
0.522°
RMS Residual
0.77 sec
Last Updated
2024-07-02 22:12:44 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Hualien City, Taiwan?

The magnitude 4.3 earthquake that struck 15 km S of Hualien City, Taiwan on April 22, 2024 at 20:07 UTC had a depth of 21.5 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000muym). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, April 22, 2024). M4.3 Earthquake 15 km S of Hualien City, TaiwanApril 22, 2024. Retrieved July 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000muym/