Which Philippine provinces have the most earthquakes?

As of the latest data, South Cotabato (SOCCSKSARGEN) leads with 950, followed by Tawi-Tawi and Surigao del Sur. Ranked by M2.5+ earthquakes in the last 365 days. M2.5+ earthquakes within ~75 km of each province, trailing 365 days. Source: USGS + PHIVOLCS + EMSC (deduped).

Data ranking

🗺️ Most Seismically Active Philippine Provinces

Philippine provinces ranked by the number of magnitude-2.5-and-greater earthquakes catalogued within ~75 km over the past 365 days.

Entries ranked

South Cotabato

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#	Name	Quakes (365d)	Strongest	Region
1	South CotabatoSOCCSKSARGEN	950	M7.8	SOCCSKSARGEN
2	Tawi-TawiBARMM	476	M5.4	BARMM
3	Surigao del SurCaraga	374	M5.5	Caraga
4	Davao OrientalDavao Region	221	M5.0	Davao Region
5	CebuCentral Visayas	175	M5.2	Central Visayas
6	AlbayBicol Region	108	M5.4	Bicol Region
7	Negros OccidentalWestern Visayas	92	M5.1	Western Visayas
8	Surigao del NorteCaraga	89	M5.1	Caraga
9	Ilocos NorteIlocos Region	83	M4.9	Ilocos Region
10	Ilocos SurIlocos Region	68	M4.8	Ilocos Region
11	PangasinanIlocos Region	62	M4.7	Ilocos Region
12	BatanesCagayan Valley	52	M4.7	Cagayan Valley
13	LeyteEastern Visayas	49	M5.0	Eastern Visayas
14	BatangasCALABARZON	49	M4.6	CALABARZON
15	Agusan del NorteCaraga	48	M5.2	Caraga

Methodology

Every M2.5+ earthquake in the past 365 days is assigned to the single nearest province (by distance to its cities/volcanoes, capped at 75 km) and counted. Catalog is the deduped USGS + PHIVOLCS + EMSC feed.

M2.5+ earthquakes within ~75 km of each province, trailing 365 days. Source: USGS + PHIVOLCS + EMSC (deduped).

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<a href="https://publicwatch.world/earthquakes/rankings/most-active-provinces">Most Seismically Active Philippine Provinces — QuakeGlobe</a>

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