4.7

M4.7 Earthquake 151 km SSE of Shizunai-furukawach?, JapanDecember 14, 2022

2022-12-14 18:47:46 UTC (2022-12-14) · approx. 4:47 AM UTC+10 local

MagnitudeM4.7(mb)
Time18:47 UTC4:47 AM UTC+10
Depth39.6 kmshallow crustal
Coordinates41.119°, 143.202°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 14, 2022 at 18:47 UTC, a magnitude 4.7 shallow crustal earthquake struck 151 km SSE of Shizunai-furukawach?, Japan, at a depth of 39.6 km and coordinates 41.1186°, 143.2022°. This earthquake was detected by 34 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 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 41.12°, 143.20°

Earthquake Details

Magnitude
4.7 mb
Depth
39.6 km
shallow crustal
Location
41.1186°N
143.2022°E

Technical Information

Event ID
us6000jacc
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
34
Azimuthal Gap
141.0°
Min Station Distance
0.896°
RMS Residual
0.63 sec
Last Updated
2023-02-18 22:04:19 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Shizunai-furukawach?, Japan?

The magnitude 4.7 earthquake that struck 151 km SSE of Shizunai-furukawach?, Japan on December 14, 2022 at 18:47 UTC had a depth of 39.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 41.1186°, 143.2022°, which is 151 km SSE of Shizunai-furukawach?, Japan. View all earthquakes in Japan.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 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 4.7 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000jacc). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, December 14, 2022). M4.7 Earthquake 151 km SSE of Shizunai-furukawach?, JapanDecember 14, 2022. Retrieved February 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jacc/