QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem886199
USGS iscgem886199

18 Mar 1957, 21:14

191 km S of Kokopo, Papua New Guinea

A magnitude 6.1 mw earthquake at 30 km depth.

Depth30 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated26 April 2022Latest timestamp stored in this record

Published location

Where is 191 km S of Kokopo, Papua New Guinea?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

-6.044000, 152.597000

Open the interactive map ↗

Map data © OpenStreetMap contributors

What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

Need a current safety answer?

Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.

Open the USGS event →

Continue exploring

Nearby events with a similar magnitude

M 6.14

195 km SE of Kokopo, Papua New Guinea

M 6.13

109 km SE of Kokopo, Papua New Guinea

M 6.12

128 km S of Panguna, Papua New Guinea

M 6.12

201 km ESE of Kokopo, Papua New Guinea

M 6.12

137 km SE of Kokopo, Papua New Guinea

M 6.16

140 km W of Panguna, Papua New Guinea

Catalog fields and provenance
Event ID
iscgem886199
Coordinates
-6.044, 152.597
Network
iscgem
Significance
580