Expected Seismic Wave Arrival Times for Recent Earthquakes Greater than Magnitude 4

This site contains data about earthquake events and their projected arrivals at the LIGO observatories in Hanford (LHO), Livingston (LLO), GEO in Germany, Virgo in Italy (VIR), KAGRA in Japan (KAG), and LIGO in India (IND).

This site refreshes once every 4 minutes to get the most recent data.
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This program was originally written by Alistair Hayden and enhanced in July 2012 by Mahdis Ghodrati to include GEO, Virgo, KAGRA and LIGO India.

Data source: USGS. Arrival time predictions made using MatTaup, a Matlab wrapper for the TauP toolkit which uses the iasp91 model of the Earth.

Information concerning the arrival times at LIGO Hanford and LIGO Livingston observatories:


To download CSV data, click on a link:
Hanford P-wave Traveltimes (seconds) EQ Dates ARCHIVED DATA, back to November 2005
Hanford P-wave Arrival Times (UTC) EQ Times (UTC) Full CSV Table
Hanford S-wave Traveltimes (seconds) EQ Latitudes Full CSV Table, no origin location
Hanford S-wave Arrival Times (UTC) EQ Longitudes
Livingston P-wave Traveltimes (seconds) EQ Depths
Livingston P-wave Arrival Times (UTC) EQ Mag
Livingston S-wave Traveltimes (seconds) EQ Location
Livingston S-wave Arrival Times (UTC)

Information concerning the arrival times at the GEO and Virgo observatories:


GEO P-wave Traveltimes (seconds) EQ Dates ARCHIVED DATA, back to May 2012
GEO P-wave Arrival Times (UTC) EQ Times (UTC) Full CSV Table
GEO S-wave Traveltimes (seconds) EQ Latitudes Full CSV Table, no origin location
GEO S-wave Arrival Times (UTC) EQ Longitudes
Virgo P-wave Traveltimes (seconds) EQ Depths
Virgo P-wave Arrival Times (UTC) EQ Mag
Virgo S-wave Traveltimes (seconds) EQ Location
Virgo S-wave Arrival Times (UTC)

Information concerning the arrival times at KAGRA and LIGO India observatories (placeholder location):


Kagra P-wave Traveltimes (seconds) EQ Dates ARCHIVED DATA, back to May 2012
Kagra P-wave Arrival Times (UTC) EQ Times (UTC) Full CSV Table
Kagra S-wave Traveltimes (seconds) EQ Latitudes Full CSV Table, no origin location
Kagra S-wave Arrival Times (UTC) EQ Longitudes
India P-wave Traveltimes (seconds) EQ Depths
India P-wave Arrival Times (UTC) EQ Mag
India S-wave Traveltimes (seconds) EQ Location
India S-wave Arrival Times (UTC)