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M4.5 Depth: 255.4 km

M4.5 Earthquake near Northern Islands Municipality, Northern Mariana Islands (United States)

UTC time: 2026-02-28 15:06:16 UTC Local time: —

About this earthquake

A magnitude M4.5 earthquake was recorded near Northern Islands Municipality, Northern Mariana Islands (United States) on February 28, 2026 at 15:06 UTC. The earthquake originated at an intermediate depth of about 255 km. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by EMSC. United States: 208 earthquakes were recorded in the past 24 hours, the strongest reaching M3.8.

Map

Depth profile

Depth profile Depth: 255.4 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 255.4 km
Intermediate
255.4 km
255.4 km — deeper than the regional average (15.8 km)
Regional average: 15.8 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Agrigan
    Distance: 10 km ·Stratovolcano ·Elevation: 965 m ·Last eruption: 1917 ·United States
  • Pagan
    Distance: 76 km ·Stratovolcano(es) ·Elevation: 570 m ·Last eruption: 2021 ·United States
  • Asuncion
    Distance: 100 km ·Stratovolcano ·Elevation: 857 m ·Last eruption: 1906 ·United States
  • Alamagan
    Distance: 134 km ·Stratovolcano ·Elevation: 744 m ·Last eruption: 870 ·United States
  • Maug Islands
    Distance: 143 km ·Stratovolcano ·Elevation: 227 m ·United States
  • Supply Reef
    Distance: 158 km ·Stratovolcano ·Elevation: -8 m ·United States

Historic earthquake map · United States

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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.

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