4.2

M4.2 Earthquake 35 km ENE of Yilan, TaiwanFebruary 19, 2024

2024-02-19 23:48:22 UTC (2024-02-19) · approx. 7:48 AM UTC+8 local

MagnitudeM4.2(mb)
Time23:48 UTC7:48 AM UTC+8
Depth6.3 kmshallow crustal
Coordinates24.828°, 122.092°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 19, 2024 at 23:48 UTC, a magnitude 4.2 shallow crustal earthquake struck 35 km ENE of Yilan, Taiwan, at a depth of 6.3 km and coordinates 24.8275°, 122.0920°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 24.83°, 122.09°

Earthquake Details

Magnitude
4.2 mb
Depth
6.3 km
shallow crustal
Location
24.8275°N
122.0920°E

Technical Information

Event ID
us7000m147
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
20
Azimuthal Gap
73.0°
Min Station Distance
0.559°
RMS Residual
0.27 sec
Last Updated
2024-05-02 15:50:13 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Yilan, Taiwan?

The magnitude 4.2 earthquake that struck 35 km ENE of Yilan, Taiwan on February 19, 2024 at 23:48 UTC had a depth of 6.3 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000m147). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, February 19, 2024). M4.2 Earthquake 35 km ENE of Yilan, TaiwanFebruary 19, 2024. Retrieved May 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m147/