M3.5 Depth: 28.0 km

M3.5 Earthquake near Hawaiian Islands (United States)

UTC time: 2025-08-21 08:59:07 UTC Local time: —

About this earthquake

On August 21, 2025 at 08:59 UTC, a magnitude M3.5 earthquake occurred near Hawaiian Islands (United States). The hypocenter lay relatively close to the surface at around 28 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by ISC. United States: 193 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude

M3.5

Depth

28.0 km

UTC time

2025-08-21 08:59:07 UTC

Local time

—

Country

United States

City

Hawaii

Source

isc

Coordinates

19.23700, -155.51400

Temperature

26.2°C

Map

Depth profile

Shallow

28 km

28 km — deeper than the regional average (15.4 km)

Regional average: 15.4 km

Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

Mauna Loa

Distance: 28 km ·Shield ·Elevation: 4'170 m ·Last eruption: 2022 ·United States
Kilauea ADVISORY · YELLOW

Distance: 31 km ·Shield ·Elevation: 1'222 m ·Last eruption: 2026 ·United States
Kamaehuakanaloa

Distance: 44 km ·Shield ·Elevation: -975 m ·Last eruption: 1996 ·United States
Hualalai

Distance: 63 km ·Shield ·Elevation: 2'523 m ·Last eruption: 1801 ·United States
Mauna Kea

Distance: 65 km ·Shield ·Elevation: 4'205 m ·Last eruption: -2460 ·United States
Haleakala

Distance: 181 km ·Shield ·Elevation: 3'053 m ·Last eruption: 1750 ·United States

Historic earthquake map · United States

Open history map

Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview

View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)

721

Country (24h)