Which Philippine provinces have the most earthquakes?

As of the latest data, South Cotabato (SOCCSKSARGEN) leads with 824, 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	824	M7.8	SOCCSKSARGEN
2	Tawi-TawiBARMM	405	M5.4	BARMM
3	Surigao del SurCaraga	295	M6.0	Caraga
4	Davao OrientalDavao Region	198	M7.4	Davao Region
5	CebuCentral Visayas	182	M6.9	Central Visayas
6	AlbayBicol Region	88	M5.4	Bicol Region
7	Negros OccidentalWestern Visayas	81	M5.5	Western Visayas
8	Surigao del NorteCaraga	71	M6.0	Caraga
9	Ilocos NorteIlocos Region	70	M5.1	Ilocos Region
10	Ilocos SurIlocos Region	54	M4.8	Ilocos Region
11	PangasinanIlocos Region	52	M4.7	Ilocos Region
12	LeyteEastern Visayas	42	M5.0	Eastern Visayas
13	Agusan del NorteCaraga	37	M5.2	Caraga
14	BatanesCagayan Valley	37	M4.9	Cagayan Valley
15	BatangasCALABARZON	36	M4.6	CALABARZON

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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