4.7

M4.7 Earthquake near Luzon, PhilippinesOctober 25, 2022

2022-10-25 21:04:47 UTC (2022-10-25) · approx. 5:04 AM UTC+8 local

0

MagnitudeM4.7(mb)
Time21:04 UTC5:04 AM UTC+8
Depth40.5 kmshallow crustal
Coordinates17.924°, 120.767°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 25, 2022 at 21:04 UTC, a magnitude 4.7 shallow crustal earthquake struck near Luzon, Philippines, at a depth of 40.5 km and coordinates 17.9245°, 120.7668°.0 This earthquake was detected by 74 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 Philippines, a region characterized by the Manila Trench and Philippine Trench subduction systems, where the Philippine Sea Plate overrides the Eurasian Plate. The nearest mapped fault system is the Philippine Fault. View all earthquakes in Philippines.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 17.92°, 120.77°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from submitted citizen responses 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 Luzon, Philippines

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

Earthquake Details

Magnitude
4.7 mb
Depth
40.5 km
shallow crustal
Location
17.9245°N
120.7668°E
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us7000ikc6
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
74
Azimuthal Gap
127.0°
Min Station Distance
4.877°
RMS Residual
0.71 sec
Last Updated
2023-01-03 15:23:39 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Luzon, Philippines?

The magnitude 4.7 earthquake that struck near Luzon, Philippines on October 25, 2022 at 21:04 UTC had a depth of 40.5 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 17.9245°, 120.7668°, which is near Luzon, Philippines. View all earthquakes in Philippines.

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 Philippines had earthquakes this big before?

The largest recorded earthquake in Philippines was the M8.0 Mindanao earthquake of August 17, 1976. Today's magnitude 4.7 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000ikc6). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 25, 2022). M4.7 Earthquake near Luzon, PhilippinesOctober 25, 2022. Retrieved January 3, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ikc6/