4.9

M4.9 Earthquake 264 km ESE of Ust’-Kamchatsk Staryy, RussiaOctober 26, 2022

2022-10-26 00:02:47 UTC (2022-10-26) · approx. 11:02 AM UTC+11 local

MagnitudeM4.9(mb)
Time00:02 UTC11:02 AM UTC+11
Depth10.0 kmshallow crustal
Coordinates55.410°, 166.442°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 26, 2022 at 00:02 UTC, a magnitude 4.9 shallow crustal earthquake struck 264 km ESE of Ust’-Kamchatsk Staryy, Russia, at a depth of 10.0 km and coordinates 55.4096°, 166.4422°. This earthquake was detected by 92 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, 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 Russia, a region characterized by the Kuril-Kamchatka subduction zone on the northwestern Pacific Ring of Fire. The nearest mapped fault system is the Kuril-Kamchatka Trench. View all earthquakes in Russia.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 55.41°, 166.44°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M4.9 earthquake near 264 km ESE of Ust’-Kamchatsk Staryy, Russia

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
55.4096°N
166.4422°E
Intensity (MMI)
3.3
light

Technical Information

Event ID
us7000ikdk
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
92
Azimuthal Gap
74.0°
Min Station Distance
5.160°
RMS Residual
0.37 sec
Last Updated
2023-01-03 15:23:40 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Ust’-Kamchatsk Staryy, Russia?

The magnitude 4.9 earthquake that struck 264 km ESE of Ust’-Kamchatsk Staryy, Russia on October 26, 2022 at 00:02 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 55.4096°, 166.4422°, which is 264 km ESE of Ust’-Kamchatsk Staryy, Russia. View all earthquakes in Russia.

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 Russia had earthquakes this big before?

The largest recorded earthquake in Russia was the M9.0 Kamchatka earthquake of November 4, 1952. Today's magnitude 4.9 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000ikdk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 26, 2022). M4.9 Earthquake 264 km ESE of Ust’-Kamchatsk Staryy, RussiaOctober 26, 2022. Retrieved January 3, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ikdk/