4.8

M4.8 Earthquake 27 km ENE of Colonia, Micronesia — July 19, 2020

2020-07-19 01:41:43 UTC (2020-07-19) · approx. 10:41 AM UTC+9 local

Felt by 1 person across nearby locations.

MagnitudeM4.8(mb)
Time01:41 UTC≈ 10:41 AM UTC+9
Depth10.0 kmshallow crustal
Coordinates9.587°, 138.359°
Felt by1DYFI response
Status✓ Reviewed by USGS

On July 19, 2020 at 01:41 UTC, a magnitude 4.8 shallow crustal earthquake struck 27 km ENE of Colonia, Micronesia, at a depth of 10.0 km and coordinates 9.5869°, 138.3595°.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 9.59°, 138.36°

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 M4.8 earthquake near 27 km ENE of Colonia, Micronesia

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

Earthquake Details

Magnitude
4.8 mb
Depth
10.0 km
shallow crustal
Location
9.5869°N
138.3595°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us7000ar22
Event Type
earthquake
Status
✓ Reviewed
Significance
355
Azimuthal Gap
81.0°
Min Station Distance
12.247°
RMS Residual
0.94 sec
Last Updated
2020-09-26 16:58:37 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Colonia, Micronesia?

The magnitude 4.8 earthquake that struck 27 km ENE of Colonia, Micronesia on July 19, 2020 at 01:41 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 9.5869°, 138.3595°, which is 27 km ENE of Colonia, Micronesia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000ar22). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 19, 2020). M4.8 Earthquake 27 km ENE of Colonia, Micronesia — July 19, 2020. Retrieved September 26, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000ar22/