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Minor mag. 3.3 earthquake - South China Sea, 35 km north of Mamburao, Philippines, on 13 May 2021 - 04:40 AM (PST)

Minor magnitude 3.3 earthquake at 103 km depth

12 May 20:55 UTC: First to report: PHIVOLCS after 15 minutes.
13 May 12:50: Hypocenter depth recalculated from 107.0 to 103.0 km (from 66 to 64 mi). Epicenter location corrected by 7 km (4.4 mi) towards NW.

Earthquake details

Date & time	May 12, 2021 20:40:00 UTC
Local time at epicenter	13 May 2021 - 04:40 AM (PST)
Status	Confirmed
Magnitude	3.3
Depth	103.0 km
Epicenter latitude / longitude	13.53°N / 120.66°E (South China Sea, Philippines)
Antipode	13.53°S / 59.34°W
Shaking intensity	Not felt
Felt
Primary data source	PHIVOLCS (Philippine Institute of Volcanology and Seismology)
Nearest volcano	Taal (65 km / 40 mi)
Nearby towns and cities	12 km (7 mi) NW of Wawa (pop: 4,880) \| Show on map \| Quakes nearby 34 km (21 mi) S of Calatagan (pop: 16,100) \| Show on map \| Quakes nearby 35 km (22 mi) N of Mamburao (Occidental Mindoro) (pop: 23,900) \| Show on map \| Quakes nearby 46 km (29 mi) S of Balayan (pop: 50,100) \| Show on map \| Quakes nearby 48 km (30 mi) SSW of Calaca (Batangas) (pop: 37,400) \| Show on map \| Quakes nearby 48 km (30 mi) SSW of Calaca (pop: 37,400) \| Show on map \| Quakes nearby 48 km (30 mi) SW of Taal (pop: 39,700) \| Show on map \| Quakes nearby 50 km (31 mi) WSW of Batangas (pop: 237,400) \| Show on map \| Quakes nearby 93 km (58 mi) SW of Calamba (pop: 316,600) \| Show on map \| Quakes nearby 124 km (77 mi) SSW of Manila (pop: 1,600,000) \| Show on map \| Quakes nearby 82 km (51 mi) NW of Mindoro Island (pop: 1,331,500) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	5.6 x 10⁹ joules (1.56 megawatt hours, equivalent to 1.34 tons of TNT) \| about seismic energy

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Data for the same earthquake reported by different agencies

Info: 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	Location	Source
3.3	103 km	011 Km N 37° W of Abra De Ilog (Occidental Mindoro), Philippines	PHIVOLCS
3.3	107 km	MINDORO, PHILIPPINES	EMSC

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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Bugaan, Batangas, Calabarzon (61.4 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging (reported through our app)

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