6.1

M6.1 Earthquake 41 km E of Santiago, PhilippinesApril 19, 2022

2022-04-19 01:23:07 UTC (2022-04-19) · approx. 9:23 AM UTC+8 local

Felt by 19 people across nearby locations. Maximum shaking intensity MMI 5.1 (strong).

MagnitudeM6.1(mww)
Time01:23 UTC9:23 AM UTC+8
Depth19.0 kmshallow crustal
Coordinates7.285°, 126.953°
Felt by19DYFI responses· max MMI 5.1
Status✓ Reviewed by USGS· green PAGER
green Alertno significant casualties or damage expected

On April 19, 2022 at 01:23 UTC, a magnitude 6.1 shallow crustal earthquake struck 41 km E of Santiago, Philippines, at a depth of 19.0 km and coordinates 7.2852°, 126.9533°. The earthquake was reported felt by 19 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 5.1 (strong). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. The nearest populated place is Baculin (population 2,971).

Physical scale: An earthquake of magnitude 6.1 releases seismic energy equivalent to roughly 21 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 9.7 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

Nearest Populated Places

Baculinpop. 2,971
MMI 5.0 (moderate)
Caragapop. 4,410
MMI 4.9 (moderate)
Santiagopop. 2,631
MMI 4.9 (moderate)
San Pedropop. 4,079
MMI 4.8 (moderate)
Manaypop. 20,336
MMI 4.8 (moderate)
San Luispop. 2,180
MMI 4.7 (moderate)
Map showing earthquake epicenter at 7.29°, 126.95°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M6.1 earthquake near 41 km E of Santiago, Philippines

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 19 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 M6.1 earthquake near 41 km E of Santiago, Philippines

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

Population exposure (USGS PAGER)

Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.

Shaking intensity (MMI)DescriptionPopulation exposed
MMI 3weak5,084,307
MMI 4light3,595,055
MMI 5moderate50,102

Earthquake Details

Magnitude
6.1 mww
Depth
19.0 km
shallow crustal
Location
7.2852°N
126.9533°E
Felt Reports
19
DYFI responses
Intensity (MMI)
5.1
strong
Community Intensity
6.2
CDI from reports

Technical Information

Event ID
us7000h373
Event Type
earthquake
Status
✓ Reviewed
Significance
584
Azimuthal Gap
42.0°
Min Station Distance
1.380°
RMS Residual
0.96 sec
Last Updated
2025-07-29 08:12:33 UTC

Common Questions

How strong was the magnitude 6.1 earthquake near Santiago, Philippines?

The magnitude 6.1 earthquake that struck 41 km E of Santiago, Philippines on April 19, 2022 at 01:23 UTC had a depth of 19.0 km. It was felt by 19 people with maximum shaking intensity of MMI 5.1 (strong). For context, this was a strong earthquake capable of causing significant damage.

Where did the earthquake occur?

The earthquake epicenter was located at 7.2852°, 126.9533°, which is 41 km E of Santiago, Philippines. The nearest populated place is Baculin (population 2,971). View all earthquakes in Philippines.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 6.1 earthquakes can continue for weeks to months 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 6.1 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000h373). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, April 19, 2022). M6.1 Earthquake 41 km E of Santiago, PhilippinesApril 19, 2022. Retrieved July 29, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000h373/