4.6

M4.6 Earthquake 2 km NNE of Santa Lucia, Philippines — April 1, 2024

2024-04-01 04:44:57 UTC (2024-04-01) · approx. 12:44 PM UTC+8 local

0

MagnitudeM4.6(mb)
Time04:44 UTC≈ 12:44 PM UTC+8
Depth139.5 kmintermediate depth
Coordinates15.388°, 120.498°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 1, 2024 at 04:44 UTC, a magnitude 4.6 intermediate depth earthquake struck 2 km NNE of Santa Lucia, Philippines, at a depth of 139.5 km and coordinates 15.3883°, 120.4978°.0 This earthquake was detected by 86 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.

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 15.39°, 120.50°

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 M4.6 earthquake near 2 km NNE of Santa Lucia, Philippines

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

Earthquake Details

Magnitude
4.6 mb
Depth
139.5 km
intermediate depth
Location
15.3883°N
120.4978°E
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us7000m95f
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
86
Azimuthal Gap
63.0°
Min Station Distance
7.410°
RMS Residual
0.66 sec
Last Updated
2024-06-12 21:51:49 UTC

Nearby Earthquakes (Last 7 Days)

5.0
7 km NW of Cabacao, Philippines
2 days ago · 90.2 km deep

Common Questions

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

The magnitude 4.6 earthquake that struck 2 km NNE of Santa Lucia, Philippines on April 1, 2024 at 04:44 UTC had a depth of 139.5 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 15.3883°, 120.4978°, which is 2 km NNE of Santa Lucia, 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.

Actions

View on USGSDid You Feel It?

Location

Philippines
View all Philippines earthquakes

Authoritative source: USGS event page (event ID: us7000m95f). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, April 1, 2024). M4.6 Earthquake 2 km NNE of Santa Lucia, Philippines — April 1, 2024. Retrieved June 12, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m95f/