Which Philippine provinces have the most earthquakes?

As of the latest data, South Cotabato (SOCCSKSARGEN) leads with 850, 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	850	M7.8	SOCCSKSARGEN
2	Tawi-TawiBARMM	425	M5.4	BARMM
3	Surigao del SurCaraga	312	M5.5	Caraga
4	Davao OrientalDavao Region	173	M5.0	Davao Region
5	CebuCentral Visayas	152	M5.2	Central Visayas
6	AlbayBicol Region	93	M5.4	Bicol Region
7	Negros OccidentalWestern Visayas	82	M5.5	Western Visayas
8	Surigao del NorteCaraga	72	M5.1	Caraga
9	Ilocos NorteIlocos Region	70	M4.9	Ilocos Region
10	Ilocos SurIlocos Region	57	M4.8	Ilocos Region
11	PangasinanIlocos Region	54	M4.7	Ilocos Region
12	Agusan del NorteCaraga	44	M5.2	Caraga
13	LeyteEastern Visayas	44	M5.0	Eastern Visayas
14	BatanesCagayan Valley	40	M4.9	Cagayan Valley
15	BatangasCALABARZON	38	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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