Details of Earthquake 23/12/18 22:08.40 (UTC) in Tonga Islands

Key: Purple star Earthquake in Tonga Islands | Orange star Stations | Red star KEYW

Click on stations on the map to view thumbnails of the seismologram images

Date Time (UTC) Magnitude Latitude Longitude Depth (km) Location
23/12/18 22:08.40 6.4 -20.37 -175.09 100.17 Tonga Islands

Stations that have uploaded data for this earthquake

Station Distance to earthquake (km / °) P arrival PP arrival S arrival SS arrival Surface waves .sac data file Seismogram images
DL02 16045.43 144.30 ° No arrival 22:31:20 No arrival 22:49:59 23:20 DL02 DL02

Approximate predicted arrival times of key phases

Hover over table headers for more information.

Key to networks: AU FR IRI IUP JA MIQ ORS Ru S SIE UK ZNT II

Network Station Distance to earthquake (km / °) P arrival PP arrival S arrival SS arrival Surface waves
16370.12 km 147.22 ° No arrival 22:31:37 No arrival 22:50:32 23:22
Change to your station
A P-wave taking the most direct route

P-wave

A P-wave which has bounced once

PP-wave

An S-wave taking the most direct route

S wave

An S-wave which has bounced once

SS wave

Waves which travel along the surface along great circle paths