4.3

M4.3 Earthquake 9 km ESE of Hualien City, TaiwanApril 3, 2024

2024-04-03 22:46:35 UTC (2024-04-03) · approx. 6:46 AM UTC+8 local

MagnitudeM4.3(mb)
Time22:46 UTC6:46 AM UTC+8
Depth43.0 kmshallow crustal
Coordinates23.957°, 121.691°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 3, 2024 at 22:46 UTC, a magnitude 4.3 shallow crustal earthquake struck 9 km ESE of Hualien City, Taiwan, at a depth of 43.0 km and coordinates 23.9569°, 121.6906°.

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 23.96°, 121.69°

Earthquake Details

Magnitude
4.3 mb
Depth
43.0 km
shallow crustal
Location
23.9569°N
121.6906°E

Technical Information

Event ID
us7000m9r8
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
56
Azimuthal Gap
77.0°
Min Station Distance
0.668°
RMS Residual
0.64 sec
Last Updated
2024-06-12 21:51:53 UTC

Common Questions

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

The magnitude 4.3 earthquake that struck 9 km ESE of Hualien City, Taiwan on April 3, 2024 at 22:46 UTC had a depth of 43.0 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: us7000m9r8). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, April 3, 2024). M4.3 Earthquake 9 km ESE of Hualien City, TaiwanApril 3, 2024. Retrieved June 12, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m9r8/