HISTORICAL TSUNAMI RECORDJuly 30, 2025

Major Ocean Tsunami Generated (Historical Record)

This undersea earthquake generated recorded tsunami waves across coastal and trans-oceanic sectors. Preserved in seismic archive for scientific reference — no active hazard exists.

Seismic Event Dossier10:24 Local (23:24 UTC)(449d ago)
52.60°N, 160.07°E
EMSC•#emsc_20250729_0000311reviewed
Historical Tsunami

Earthquake near Off the coast of Petropavlovsk-Kamchatsky, Russia

A magnitude 8.8 (MW) earthquake occurred on 2025-07-29, 10:24 local time (23:24 UTC) (449d ago), centered Off the coast of Petropavlovsk-Kamchatsky (110 km SE, Russia). The hypocenter was located at a shallow depth of 20 km. Primary telemetry verified by EMSC alongside 1 regional seismic monitoring networks.

Historical Landmark Earthquake

#9 of All Time

Curated Global Seismic Archive (1700–Present)

Top-100 Earthquakes
Magnitude 8.8 historical earthquake occurring on 2025-07-29 in Russia. Associated with the Unnamed Fault (Active Fault). Documented casualties: > 1,000.
Documented Fatalities> 1,000
Fault KinematicsActive Fault
Equivalent Energy239.01 Mt TNT

Magnitude

MW
M 8.8

239.01 Mt TNT

Depth

20 km
20 km

shallow (Shallow crustal)

PAGER Impact

red
> 1,000 fatalities

Injuries: > 5,000 · ~1.1M felt

Interactive Epicenter & Fault Map

Fault5 km
Unnamed Fault
Active Fault · ~~15.0 mm/yr
Felt byMMI V+
~1.1M exposed
~942K in strong shaking
Primary SolutionEMSC
EMSC#emsc_20250729_0000311reviewed
1 agencies reporting
Geological Setting52.6°N
Kamchatka & Kuril-Kamchatka Trench
Offshore / Marine rupture

Seismic Activity & Aftershock Sequence

Timeline of foreshocks, main rupture, aftershocks and machine learning risk probability evolution.

M0.0M5.0M10.0100%50%0%MainshockJul 31Aug 5Aug 10Aug 15Aug 20Aug 25Aug 30M8.8
Hover or tap a point to inspect aftershocks and risk probability curve.
<35 km (Shallow)35–70 km (Intermediate)>70 km (Deep)Mainshock
ML Risk Forecast:12h42%24h57%72h74%7d92%

Where it was felt

1 settlements

Shaking intensity is modelled from magnitude, depth and distance (GMPE attenuation), not reported by residents.

TownDistanceIntensity
Petropavlovsk-Kamchatsky · Kamchatka110 kmMMI IX

Readings by agency

1 sources

Independent solutions for the same rupture. Differences of 0.1–0.3 in magnitude are normal and reflect method and station coverage.

AgencySource IDMagnitudeDepthEpicenter
EMSC
Primary
emsc_20250729_0000311M 8.820 km52.60, 160.07

Tectonic setting

Nearest mapped active fault: Unnamed Fault, 5 km away, slip rate ~15.0 mm/yr (GEM Global Active Faults).

Regional Seismic Profile

Kamchatka & Kuril-Kamchatka Trench

View live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for this zone.