3/24/2026 Tonga 7.5

3/24/2026 Tonga 7.5 seismogram
3/24/2026 Tonga 7.5 location map with focal mechanism
3/24/2026 Tonga 7.5 focal mechanism

Earthquake DetailsSeismogram Explanation
Location: TongaPdiff-wave: not verified
Date: March 24, 2026Sdiff-wave: not verified
Time: 04:37:50 UTC; 11:37:50 PM CDT (local 3/23)The vertical axis is in units of displacement in centimeters.
Latitude: 18.70 SThe horizontal axis is in units of time in seconds.
Longitude: 175.44 WThe beginning of the file is the origin of the event.
Magnitude: 7.5 Mw This was a very deep earthquake, hence the lack of large surface waves.
Depth: 200.5 km 
Distance: 100.92 degrees (~6,831 miles from Milwaukee)