4.6

M4.6 Earthquake 17 km ENE of Santa Cruz, Philippines — September 11, 2020

2020-09-11 04:52:32 UTC (2020-09-11) · approx. 12:52 PM UTC+8 local

Felt by 1 person across nearby locations.

MagnitudeM4.6(mb)
Time04:52 UTC≈ 12:52 PM UTC+8
Depth76.5 kmintermediate depth
Coordinates13.159°, 120.856°
Felt by1DYFI response
Status✓ Reviewed by USGS

On September 11, 2020 at 04:52 UTC, a magnitude 4.6 intermediate depth earthquake struck 17 km ENE of Santa Cruz, Philippines, at a depth of 76.5 km and coordinates 13.1587°, 120.8560°.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — 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 13.16°, 120.86°

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 M4.6 earthquake near 17 km ENE of Santa Cruz, Philippines

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

Earthquake Details

Magnitude
4.6 mb
Depth
76.5 km
intermediate depth
Location
13.1587°N
120.8560°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us7000blld
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Azimuthal Gap
124.0°
Min Station Distance
4.385°
RMS Residual
0.61 sec
Last Updated
2020-11-21 20:10:36 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Santa Cruz, Philippines?

The magnitude 4.6 earthquake that struck 17 km ENE of Santa Cruz, Philippines on September 11, 2020 at 04:52 UTC had a depth of 76.5 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 13.1587°, 120.8560°, which is 17 km ENE of Santa Cruz, Philippines. View all earthquakes in Philippines.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 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 4.6 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000blld). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, September 11, 2020). M4.6 Earthquake 17 km ENE of Santa Cruz, Philippines — September 11, 2020. Retrieved November 21, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000blld/