4.9

M4.9 Earthquake 5 km S of Komatsushimach?, JapanJune 16, 2022

2022-06-16 15:51:26 UTC (2022-06-16) · approx. 12:51 AM UTC+9 local

Felt by 9 people across nearby locations.

MagnitudeM4.9(mww)
Time15:51 UTC12:51 AM UTC+9
Depth39.8 kmshallow crustal
Coordinates33.950°, 134.572°
Felt by9DYFI responses
Status✓ Reviewed by USGS

On June 16, 2022 at 15:51 UTC, a magnitude 4.9 shallow crustal earthquake struck 5 km S of Komatsushimach?, Japan, at a depth of 39.8 km and coordinates 33.9496°, 134.5716°. This earthquake was detected by 153 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 373, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Japan, a region characterized by the intersection of four tectonic plates — Pacific, Philippine Sea, Eurasian, and North American — creating multiple subduction zones. The nearest mapped fault system is the Japan Trench. View all earthquakes in Japan.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 33.95°, 134.57°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 9 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 M4.9 earthquake near 5 km S of Komatsushimach?, Japan

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

Earthquake Details

Magnitude
4.9 mww
Depth
39.8 km
shallow crustal
Location
33.9496°N
134.5716°E
Felt Reports
9
DYFI responses
Community Intensity
4.1
CDI from reports

Technical Information

Event ID
us7000hhvk
Event Type
earthquake
Status
✓ Reviewed
Significance
373
Stations Used
153
Azimuthal Gap
25.0°
Min Station Distance
0.618°
RMS Residual
0.62 sec
Last Updated
2022-08-21 00:17:56 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Komatsushimach?, Japan?

The magnitude 4.9 earthquake that struck 5 km S of Komatsushimach?, Japan on June 16, 2022 at 15:51 UTC had a depth of 39.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 33.9496°, 134.5716°, which is 5 km S of Komatsushimach?, Japan. View all earthquakes in Japan.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Has Japan had earthquakes this big before?

The largest recorded earthquake in Japan was the M9.1 Tohoku earthquake of March 11, 2011. Today's magnitude 4.9 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000hhvk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, June 16, 2022). M4.9 Earthquake 5 km S of Komatsushimach?, JapanJune 16, 2022. Retrieved August 21, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hhvk/