4.2

M4.2 Earthquake near Kuril Islands — July 4, 2020

2020-07-04 23:31:00 UTC (2020-07-04) · approx. 9:31 AM UTC+10 local

MagnitudeM4.2(mb)
Time23:31 UTC≈ 9:31 AM UTC+10
Depth141.3 kmintermediate depth
Coordinates48.076°, 152.532°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 4, 2020 at 23:31 UTC, a magnitude 4.2 intermediate depth earthquake struck near Kuril Islands, at a depth of 141.3 km and coordinates 48.0764°, 152.5320°.

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 48.08°, 152.53°

Earthquake Details

Magnitude
4.2 mb
Depth
141.3 km
intermediate depth
Location
48.0764°N
152.5320°E

Technical Information

Event ID
us7000aktg
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Azimuthal Gap
130.0°
Min Station Distance
6.015°
RMS Residual
0.88 sec
Last Updated
2020-09-11 22:14:12 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Kuril Islands?

The magnitude 4.2 earthquake that struck near Kuril Islands on July 4, 2020 at 23:31 UTC had a depth of 141.3 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: us7000aktg). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 4, 2020). M4.2 Earthquake near Kuril Islands — July 4, 2020. Retrieved September 11, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000aktg/