M5.2 Earthquake near Madang, Papua New Guinea — 04 April 2025
A moderate earthquake of magnitude 5.2 was recorded near Madang, Papua New Guinea on , with an epicentre 53 km south of Madang, at a focal depth of 115.1 km.
Time (UTC): 2025-04-04 10:51:48
Time (your timezone): —
Magnitude: 5.2 (moderate)
Focal depth: 115.1 km (intermediate)
Epicentre: -5.6979, 145.7100
Location: 53 km S of Madang, Papua New Guinea
USGS link to NOAA tsunami information: Not linked
Review status: Reviewed
Source: USGS event page
How strong was this earthquake?
Moderate earthquakes can damage poorly built or unreinforced structures near the epicentre, while well-engineered buildings typically escape serious harm. Shaking is often strong enough to wake sleeping residents over a wide area.
A magnitude 5.2 earthquake radiates roughly 951 tons of TNT equivalent in seismic energy.
The USGS assigns this earthquake a significance score of 418, which is below the USGS threshold of more than 600 for its significant-earthquake list. The ranking combines magnitude with available Did You Feel It responses and PAGER alert level; it is not a direct measurement of damage.
Where was the epicentre?
The epicentre was located at -5.6979, 145.7100 — 53 km south of Madang. The closest other recorded event was a magnitude 6.5 earthquake 24 km west of here on 22 December 2025.
Why the 115 km depth matters
At 115 km this was an intermediate-depth earthquake. Energy from events at this depth spreads out before it reaches the surface, which usually means weaker shaking near the epicentre than a shallow quake of the same magnitude, but shaking felt across a wider area.
This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size can be felt widely and may cause minor local damage. Its intermediate depth normally reduces peak shaking near the epicentre compared with a shallow event of the same magnitude.
What does the tsunami information flag mean?
The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M5.2 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; its 115 km focal depth is too great to deform the sea floor significantly; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.
How earthquakes generate tsunamis, and what the alert levels mean →
Aftershocks and local seismic history
No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.
111 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.7 event near Lae on 07 October 2025. This M5.2 event released about 178 times less energy than that event.
How long aftershock sequences last, and how large they get →
Where this event sits in the record
This earthquake is part of the April 2025 worldwide record. Browse the full monthly archive to compare periods.
Nearest recorded earthquakes to this epicentre
- M6.5 earthquake near Goroka, Papua New Guinea — (24 km W)
- M5.1 earthquake near Goroka, Papua New Guinea — (26 km SW)
- M4.5 earthquake near Goroka, Papua New Guinea — (34 km SW)
- M5.7 earthquake near Madang, Papua New Guinea — (39 km NNE)
- M5.2 earthquake near Madang, Papua New Guinea — (46 km NNW)
- M4.6 earthquake near Madang, Papua New Guinea — (49 km NE)
- M5.5 earthquake near Madang, Papua New Guinea — (53 km NNE)
- M5.9 earthquake near Madang, Papua New Guinea — (56 km NE)
- M4.4 earthquake near Kainantu, Papua New Guinea — (64 km ESE)
- M4.5 earthquake near Kainantu, Papua New Guinea — (68 km S)
Other magnitude 5 earthquakes worldwide
- M5.2 earthquake near Severo-Kuril’sk, Russia —
- M5.2 earthquake near Tsunō, Japan —
- M5.1 earthquake near south of the Fiji Islands —
- M4.9 earthquake near Matsubase, Japan —
- M5.1 earthquake near Tristan da Cunha region —
- M5.1 earthquake near Tristan da Cunha region —
- M5.1 earthquake near south of the Fiji Islands —
- M5.5 earthquake near Mutsu, Japan —
Questions about this earthquake
How strong is a magnitude 5.2 earthquake?
Moderate earthquakes can damage poorly built or unreinforced structures near the epicentre, while well-engineered buildings typically escape serious harm. Shaking is often strong enough to wake sleeping residents over a wide area. A magnitude 5.2 earthquake radiates roughly 951 tons of TNT equivalent in seismic energy.
How deep was the earthquake near Madang?
At 115 km this was an intermediate-depth earthquake. Energy from events at this depth spreads out before it reaches the surface, which usually means weaker shaking near the epicentre than a shallow quake of the same magnitude, but shaking felt across a wider area.
Was the M5.2 earthquake near Madang felt?
This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size can be felt widely and may cause minor local damage. Its intermediate depth normally reduces peak shaking near the epicentre compared with a shallow event of the same magnitude.
What does the USGS tsunami field mean for this event?
The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M5.2 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; its 115 km focal depth is too great to deform the sea floor significantly; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.
Have there been aftershocks?
No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.
How often do earthquakes happen near Madang?
111 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.7 event near Lae on 07 October 2025. This M5.2 event released about 178 times less energy than that event.