4.3

M4.3 Earthquake 5 km ENE of Toyohama, JapanJuly 13, 2022

2022-07-13 21:17:55 UTC (2022-07-13) · approx. 6:17 AM UTC+9 local

MagnitudeM4.3(mb)
Time21:17 UTC6:17 AM UTC+9
Depth336.2 kmdeep-focus
Coordinates34.724°, 136.996°
Felt by1DYFI response
Status✓ Reviewed by USGS

On July 13, 2022 at 21:17 UTC, a magnitude 4.3 deep-focus earthquake struck 5 km ENE of Toyohama, Japan, at a depth of 336.2 km and coordinates 34.7236°, 136.9963°.

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 34.72°, 137.00°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response 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 M4.3 earthquake near 5 km ENE of Toyohama, Japan

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

Earthquake Details

Magnitude
4.3 mb
Depth
336.2 km
deep-focus
Location
34.7236°N
136.9963°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us6000i27y
Event Type
earthquake
Status
✓ Reviewed
Significance
285
Stations Used
67
Azimuthal Gap
60.0°
Min Station Distance
0.626°
RMS Residual
0.86 sec
Last Updated
2022-09-24 21:25:43 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Toyohama, Japan?

The magnitude 4.3 earthquake that struck 5 km ENE of Toyohama, Japan on July 13, 2022 at 21:17 UTC had a depth of 336.2 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: us6000i27y). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, July 13, 2022). M4.3 Earthquake 5 km ENE of Toyohama, JapanJuly 13, 2022. Retrieved September 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i27y/