QQuakeFacts
USGS iscgem811574

27 Mar 1969, 05:46

231 km N of Tobelo, Indonesia

A magnitude 6 mw earthquake at 24.4 km depth.

Depth24.4 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 231 km N of Tobelo, Indonesia?

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

3.800000, 128.335000

Open the interactive map ↗

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

Catalog fields and provenance
Event ID
iscgem811574
Coordinates
3.8, 128.335
Network
iscgem
Significance
554