PRISM Alerts · Philippines · Alert 25
Philippines Disaster displacement worsening 13 October 2026

Philippines: 157,176 disaster-driven internal displacements between 2026-08-01 and 2026-08-31 (IDMC IDU)

Disaster-driven internal displacements per month (people)

According to IDMC's Internal Displacement Updates, between 1 August and 31 August 2026 the Philippines recorded 157,176 disaster-driven internal displacements across 7 events. The alert fired because this figure exceeded the rule's fixed floor of 50,000 for a calendar month; it remained below the 90th percentile of 191,128 in the country's own monthly record over 19 months. The largest single figure in the data, 73,822, was recorded on 26 August under the event for Tropical Storm Penha (locally Basyang), based on reporting from DSWD's DROMIC.

Narrative written by claude-opus-5-5 from the figures and evidence on this page. Read against the source.

How this fired

RuleDisplacement in a month against the country's own record
Period2026-08-01 to 2026-08-31
Displacement in the month157,176
Events in the month7
Months of history compared19
90th percentile of that history191,128
Judged againstan absolute floor of 50,000; the 90th percentile of the country's own record, 191,128. Fired on: abs_floor.
Detected13 October 2026, run 19

Evidence

IDMC Internal Displacement Updates, deduplicated to one figure per event Country page All alerts for Philippines JSON
key displacement_window:PHL:disaster:2026-08