USGS · Understand these data
Earthquake · 8.1 mwc
Matautu · 167.44 km SSW
- Origin time (UTC)
- Reference-place local time · Pacific/Apia
- Magnitude
- 8.1 mwc
- Depth
- 18 km
- Epicentre coordinates
- -15.49°, -172.1°
- Source review
- Reviewed
Source: USGS
Original magnitude measurements
Magnitude scales describe different measurements. Values from different scales are not directly interchangeable.
| Source | Magnitude | Source revision · UTC |
|---|---|---|
| usgs · usp000h1ys | 8.1 mwc |
- USGS · Source event ID:
usp000h1ys· Source revision: UTC
Source-reported intensity
MMI: 5.68
Intensity describes shaking at locations; it is different from earthquake magnitude.
Source products
Products are available only when supplied by the source. A tsunami-related flag is not a current official warning.
No verified impact product is available for this event. Magnitude alone does not describe local shaking or damage.
Reference places
- Matautu · 167.44 km SSW · Pacific/Apia
Distances describe geographic context. Nearby events are not automatically aftershocks or evidence of future risk.
Catalogue coverage
The historical catalogue includes USGS M6+ from 1900, M4.5+ from 1970 and delivered events since the project began. It is not a complete record of all small earthquakes.
— UTC