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Mag. 4.8 earthquake - South China Sea, 150 km northwest of Laoag, Philippines, on Monday, Feb 12, 2024, at 07:55 pm (GMT +8) -

A strong magnitude 4.8 earthquake occurred under the sea 128 km (80 mi) from  Philippines in the late afternoon of Monday, Feb 12, 2024 at 7.55 pm local time (GMT +8). The quake had a very shallow depth of 12.5 km (8 mi) and was not felt (or at least not reported so).

Mag. 4.8 earthquake - South China Sea, 150 km northwest of Laoag, Philippines, on Monday, Feb 12, 2024, at 07:55 pm (GMT +8) Mag. 4.8 earthquake - South China Sea, 150 km northwest of Laoag, Philippines, on Monday, Feb 12, 2024, at 07:55 pm (GMT +8)

Moderate magnitude 4.8 earthquake at 13 km depth

12 Feb 12:10 UTC: First to report: PHIVOLCS after 15 minutes.
12 Feb 12:18: Now using data updates from USGS

Earthquake details

Date & timeFeb 12, 2024 11:55:04 UTC -
Local time at epicenterMonday, Feb 12, 2024, at 07:55 pm (GMT +8)
StatusConfirmed
Magnitude4.8
Depth12.5 km
Epicenter latitude / longitude19.0677°N / 119.5133°E Philippines
Seismic antipode19.0677°S / 60.487°W Bolivia
Shaking intensityModerate shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoCamiguin de Babuyanes (248 km / 154 mi)
Weather at epicenter at time of quakeScattered Clouds 23.2°C (74 F), humidity: 71%, wind: 15 m/s (29 kts) from ENE
Estimated seismic energy released1 x 1012 joules (278 megawatt hours, equivalent to 239 tons of TNT) | about seismic energy
Interactive map
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Nearby places

The closest larger town where the quake might have been felt is Davila, a town with 3,500 inhabitants in the Philippines, in 130 km (81 mi) distance southeast of the epicenter. People likely experienced weak shaking there. In the capital of the  Philippines, Manila, 520 km (323 mi) away from the epicenter, the earthquake could not be felt.
The following table shows some of the places that might have been affected (or not) by the shaking.
Distance Place Max. shaking intensity(*) Region Country
130 km (81 mi)
SE of epicenter
Davila
(pop: 3,470)
III: Weak
Province of Ilocos Norte, Ilocos
142 km (88 mi)
SE of epicenter
Pasuquin
(pop: 5,770)
III: Weak
Province of Ilocos Norte, Ilocos
145 km (90 mi)
E of epicenter
Pagudpud
(pop: 4,950)
III: Weak
Province of Ilocos Norte, Ilocos
150 km (93 mi)
SE of epicenter
Laoag
(pop: 102,100)
III: Weak
Province of Ilocos Norte, Ilocos
151 km (94 mi)
SE of epicenter
San Nicolas de Ilocos
(pop: 34,200)
III: Weak
Province of Ilocos Norte, Ilocos
158 km (98 mi)
SE of epicenter
Batac City
(pop: 53,500)
III: Weak
Province of Ilocos Norte, Ilocos
163 km (101 mi)
SE of epicenter
Badoc
(pop: 4,320)
III: Weak
Province of Ilocos Norte, Ilocos
165 km (102 mi)
SE of epicenter
Dingras
(pop: 6,870)
III: Weak
Province of Ilocos Norte, Ilocos
173 km (108 mi)
E of epicenter
Claveria
(pop: 10,600)
II: Very weak
Cagayan, Cagayan Valley
173 km (108 mi)
SE of epicenter
Cabugao
(pop: 6,870)
II: Very weak
Province of Ilocos Sur, Ilocos
189 km (118 mi)
SE of epicenter
Bantay
(pop: 10,100)
II: Very weak
Province of Ilocos Sur, Ilocos
190 km (118 mi)
SE of epicenter
Vigan
(pop: 48,500)
II: Very weak
Province of Ilocos Sur, Ilocos
220 km (137 mi)
E of epicenter
Cabaritan East
(pop: 9,350)
II: Very weak
Cagayan, Cagayan Valley
231 km (143 mi)
SE of epicenter
Candon
(pop: 11,200)
II: Very weak
Province of Ilocos Sur, Ilocos
238 km (148 mi)
E of epicenter
Aparri
(pop: 33,200)
II: Very weak
Cagayan, Cagayan Valley
250 km (155 mi)
SE of epicenter
Magapit
(pop: 11,200)
II: Very weak
Cagayan, Cagayan Valley
255 km (159 mi)
SE of epicenter
Santa Maria
(pop: 28,000)
II: Very weak
Province of Ilocos Sur, Ilocos
257 km (160 mi)
SE of epicenter
Tagudin
(pop: 35,800)
II: Very weak
Province of Ilocos Sur, Ilocos
272 km (169 mi)
SE of epicenter
Tabuk
(pop: 27,000)
II: Very weak
Kalinga, Cordillera
279 km (173 mi)
SE of epicenter
Solana
(pop: 71,500)
II: Very weak
Cagayan, Cagayan Valley
280 km (174 mi)
SE of epicenter
Mankayan
(pop: 15,900)
II: Very weak
Province of Benguet, Cordillera
284 km (176 mi)
SE of epicenter
Tuguegarao City
(pop: 115,100)
II: Very weak
Cagayan, Cagayan Valley
286 km (177 mi)
S of epicenter
San Fernando
(pop: 83,000)
II: Very weak
Province of La Union, Ilocos
295 km (183 mi)
S of epicenter
Bauang
(pop: 17,100)
II: Very weak
Province of La Union, Ilocos
300 km (186 mi)
SE of epicenter
Cabagan
(pop: 25,300)
II: Very weak
Province of Isabela, Cagayan Valley
310 km (193 mi)
S of epicenter
Aringay
(pop: 29,800)
II: Very weak
Province of La Union, Ilocos
311 km (193 mi)
SE of epicenter
Roxas
(pop: 16,600)
II: Very weak
Province of Isabela, Cagayan Valley
312 km (194 mi)
S of epicenter
Trinidad
(pop: 41,300)
II: Very weak
Province of Benguet, Cordillera
316 km (197 mi)
S of epicenter
Baguio City
(pop: 272,700)
II: Very weak
Province of Benguet, Cordillera
326 km (202 mi)
SE of epicenter
Diadi
(pop: 15,600)
II: Very weak
Province of Nueva Vizcaya, Cagayan Valley
327 km (203 mi)
SE of epicenter
San Mateo
(pop: 16,200)
II: Very weak
Province of Isabela, Cagayan Valley
330 km (205 mi)
SE of epicenter
Ilagan
(pop: 72,400)
II: Very weak
Province of Isabela, Cagayan Valley
332 km (206 mi)
SE of epicenter
Ramon
(pop: 36,300)
II: Very weak
Province of Isabela, Cagayan Valley
334 km (208 mi)
SE of epicenter
Solano
(pop: 36,200)
II: Very weak
Province of Nueva Vizcaya, Cagayan Valley
336 km (209 mi)
SE of epicenter
Baggabag B
(pop: 25,000)
II: Very weak
Province of Nueva Vizcaya, Cagayan Valley
336 km (209 mi)
SE of epicenter
Bayombong
(pop: 48,200)
II: Very weak
Province of Nueva Vizcaya, Cagayan Valley
341 km (212 mi)
SE of epicenter
Santiago
(pop: 108,400)
II: Very weak
Province of Isabela, Cagayan Valley
343 km (213 mi)
SE of epicenter
Bambang
(pop: 22,800)
II: Very weak
Province of Nueva Vizcaya, Cagayan Valley
344 km (214 mi)
SE of epicenter
Alicia
(pop: 24,700)
II: Very weak
Province of Isabela, Cagayan Valley
520 km (323 mi)
S of epicenter
Manila
(pop: 1,600,000)
I: Not felt
Capital District, National Capital Region
Notes:
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

User-reports for this quake

There are no user reports for this quake yet.

If you felt it, be the first to report it!
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Compare Quake Data

Data for the same earthquake as reported by different agencies

The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag Depth Time GMT
2024-02-12
Epicenter Agency
4.8 13 km
7.8 mi
11:55:04 130 Km WNW of Davila, Philippines USGS (United States Geological Survey)
4.8 12 km
7.5 mi
11:55:04 Philippine Islands Region
7.2 km (4.4 mi) epicenter difference with USGS
EMSC (European-Mediterranean Seismological Centre)
4.4 15 km
9.3 mi
11:55:00 130 Km WNW of Davila, Philippines
38 km (24 mi) epicenter difference with USGS
PHIVOLCS (Philippine Institute of Volcanology and Seismology)
4.8 10 km
6.2 mi
(*)
11:55:04 Philippine Islands Region
0 km (0 mi) epicenter difference with USGS
IRIS (Incorporated Research Institutions for Seismology)
5.0 10 km
6.2 mi
(*)
11:55:04 Philippine Islands Region
6.4 km (4 mi) epicenter difference with USGS
GFZ (German Research Centre for Geosciences)
Notes:
(*) A depth given as 10 km often means that the the depth of the quake could not determined with sufficient accuracy.

Seismograms

Seismic station: Taitung (TWGB/TW network) | Distance from quake: 448 km / 278 mi | Show on map | Station Info
Seismic station Taitung: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

Aftershocks for this quake

No aftershocks have been recorded so far. When aftershocks are detected, we will update this section.

What are aftershocks?


Larger earthquakes (above magnitude 5 or so) such as this one are usually followed by smaller ones known as aftershocks that occur in the same area during the days, weeks, months or even years after the main shock.
[More info]

What about this quake?


Based on its magnitude, the fault that was active during the quake likely ruptured beneath a surface of approx. 6 km2 (=2 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 4 km (3 mi).
[More info]


Recorded aftershocks, latest first (0 quake)

Date and Time GMTMag
Depth
DistanceRegionDetails
Feb 12, 2024 07:55 pm (GMT +8)
3 weeks ago
4.8

13 km
0 km - This quakeSouth China Sea, 150 km NW of Laoag, Philippines
Main Shock (this quake)
More

Map of aftershocks

Earthquake statistics

Average number of earthquakes

Based on data from the past 10 years and our earthquake archive back to 1900, there are about 193 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):
  • Mag. 6 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)
  • Mag. 5 or higher: 0.44 quakes per year (or 1 quake every 2.3 years)
  • Mag. 4 or higher: 2.3 quakes per year
  • Mag. 3 or higher: 10 quakes per year
  • Mag. 2 or higher: 18.6 quakes per year
The area where this quake occurred has a high level of seismic activity. It has had at least 4 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.

Number of quakes per year

Previous quakes in the same area of this earthquake

Map of earlier quakes in the area of this quake

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Map to embed or share

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