4.7

M4.7 Earthquake in the Philippine Islands region — January 22, 2021

2021-01-22 01:54:26 UTC (2021-01-22) · approx. 9:54 AM UTC+8 local

Felt by 1 person across nearby locations.

MagnitudeM4.7(mb)
Time01:54 UTC≈ 9:54 AM UTC+8
Depth10.0 kmshallow crustal
Coordinates13.563°, 119.287°
Felt by1DYFI response
Status✓ Reviewed by USGS

On January 22, 2021 at 01:54 UTC, a magnitude 4.7 shallow crustal earthquake struck in the Philippine Islands region, at a depth of 10.0 km and coordinates 13.5635°, 119.2868°.

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.

Map showing earthquake epicenter at 13.56°, 119.29°

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 M4.7 earthquake near Philippine Islands region

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

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
13.5635°N
119.2868°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us7000d29t
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Azimuthal Gap
112.0°
Min Station Distance
20.126°
RMS Residual
0.51 sec
Last Updated
2021-04-13 17:07:02 UTC

Common Questions

How strong was the magnitude 4.7 earthquake in the Philippine Islands region?

The magnitude 4.7 earthquake that struck in the Philippine Islands region on January 22, 2021 at 01:54 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 13.5635°, 119.2868°, which is in the Philippine Islands region.

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.

Authoritative source: USGS event page (event ID: us7000d29t). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, January 22, 2021). M4.7 Earthquake in the Philippine Islands region — January 22, 2021. Retrieved April 13, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000d29t/