4.2

M4.2 Earthquake 29 km SE of Ishigaki, JapanMay 16, 2022

2022-05-16 19:20:01 UTC (2022-05-16) · approx. 3:20 AM UTC+8 local

MagnitudeM4.2(mb)
Time19:20 UTC3:20 AM UTC+8
Depth22.9 kmshallow crustal
Coordinates24.138°, 124.337°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 16, 2022 at 19:20 UTC, a magnitude 4.2 shallow crustal earthquake struck 29 km SE of Ishigaki, Japan, at a depth of 22.9 km and coordinates 24.1379°, 124.3370°.

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 24.14°, 124.34°

Earthquake Details

Magnitude
4.2 mb
Depth
22.9 km
shallow crustal
Location
24.1379°N
124.3370°E

Technical Information

Event ID
us6000hmnq
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
27
Azimuthal Gap
89.0°
Min Station Distance
1.253°
RMS Residual
0.85 sec
Last Updated
2022-07-24 02:39:13 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Ishigaki, Japan?

The magnitude 4.2 earthquake that struck 29 km SE of Ishigaki, Japan on May 16, 2022 at 19:20 UTC had a depth of 22.9 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 4.2 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: us6000hmnq). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, May 16, 2022). M4.2 Earthquake 29 km SE of Ishigaki, JapanMay 16, 2022. Retrieved July 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hmnq/