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M4.6 Depth: 59.0 km

M4.6 Earthquake near 37 km SE of Madang, Papua New Guinea (Papua New Guinea)

UTC time: 2025-07-31 08:18:36 UTC Local time: —

About this earthquake

A magnitude M4.6 earthquake was recorded near 37 km SE of Madang, Papua New Guinea (Papua New Guinea) on July 31, 2025 at 08:18 UTC. The hypocenter lay relatively close to the surface at around 59 km, increasing how strongly it was felt. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by USGS. Papua New Guinea: 4 earthquakes were recorded in the past 24 hours, the strongest reaching M5.0.

Details

Magnitude
M4.6
Depth
59.0 km
UTC time
2025-07-31 08:18:36 UTC
Local time
—
Country
Papua New Guinea
City
Madang
Source
usgs
Coordinates
-5.42880, 146.05650
Temperature
23.9°C

Map

Depth profile

Depth profile Depth: 59 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 59 km
Shallow
59 km
59 km — shallower than the regional average (85 km)
Regional average: 85 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

  • Karkar
    Distance: 87 km ·Stratovolcano ·Elevation: 1'839 m ·Last eruption: 1979 ·Papua New Guinea
  • Hankow Reef
    Distance: 95 km ·Stratovolcano ·Elevation: -5 m ·Papua New Guinea
  • Long Island
    Distance: 117 km ·Complex ·Elevation: 1'263 m ·Last eruption: 1993 ·Papua New Guinea
  • Manam
    Distance: 188 km ·Stratovolcano ·Elevation: 1'807 m ·Last eruption: 2026 ·Papua New Guinea
  • Umboi
    Distance: 204 km ·Complex ·Elevation: 1'335 m ·Papua New Guinea
  • Sakar
    Distance: 224 km ·Stratovolcano ·Elevation: 947 m ·Papua New Guinea

Historic earthquake map · Papua New Guinea

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 · Papua New Guinea

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

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