4.2

M4.2 Earthquake 6 km WNW of Itoman, JapanFebruary 26, 2024

2024-02-26 18:30:18 UTC (2024-02-26) · approx. 3:30 AM UTC+9 local

MagnitudeM4.2(mb)
Time18:30 UTC3:30 AM UTC+9
Depth41.5 kmshallow crustal
Coordinates26.146°, 127.612°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On February 26, 2024 at 18:30 UTC, a magnitude 4.2 shallow crustal earthquake struck 6 km WNW of Itoman, Japan, at a depth of 41.5 km and coordinates 26.1459°, 127.6116°.

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 26.15°, 127.61°

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 M4.2 earthquake near 6 km WNW of Itoman, Japan

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

Earthquake Details

Magnitude
4.2 mb
Depth
41.5 km
shallow crustal
Location
26.1459°N
127.6116°E
Felt Reports
2
DYFI responses
Community Intensity
2.6
CDI from reports

Technical Information

Event ID
us7000m1q3
Event Type
earthquake
Status
✓ Reviewed
Significance
272
Stations Used
40
Azimuthal Gap
76.0°
Min Station Distance
0.908°
RMS Residual
0.80 sec
Last Updated
2024-05-10 21:26:01 UTC

Common Questions

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

The magnitude 4.2 earthquake that struck 6 km WNW of Itoman, Japan on February 26, 2024 at 18:30 UTC had a depth of 41.5 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 4.2 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: us7000m1q3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, February 26, 2024). M4.2 Earthquake 6 km WNW of Itoman, JapanFebruary 26, 2024. Retrieved May 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m1q3/