🌏 PH Seismic Map

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Active faults & trenches

West Valley Fault — the "Big One" (≈M7.2) source. Runs N–S through Quezon City, Marikina, Pasig, Taguig, Muntinlupa. East Valley Fault — shorter splay near Marikina/Rodriguez. Philippine Fault Zone — major arc-wide strike-slip system. Manila / Philippine Trench — offshore subduction zones. Other mapped plate boundaries (live).

Earthquakes (live)

M 2.5–4
M 4–5
M 5–6
M 6+

Size + fill = magnitude. Border colour = reporting agency:

🇵🇭 PHIVOLCS (confirmed)
USGS
EMSC

A pulsing ring marks a just-arrived live event. ⬥ markers = curated historical major quakes.

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Soft-soil hazard

Liquefaction / shaking-amplification zones — soft, water-saturated alluvium & reclaimed land. Shaking is amplified and the ground can lose strength (liquefy). Approximate, illustrative.