Two strong earthquakes in Vanuatu - Magnitude 5.1 and 4.5

U.S. Geological Survey
Thu, 25 Jun 2009 13:02 UTC

© USGS

Magnitude:
5.1

Date-Time:
- Thursday, June 25, 2009 at 06:43:52 UTC
- Thursday, June 25, 2009 at 05:43:52 PM at epicenter

Location:
19.373°S, 169.361°E

Depth:
301.6 km (187.4 miles)

Region:
VANUATU

© USGS

Historical Seismicity

Distances:
- 65 km (40 miles) W of Isangel, Tanna, Vanuatu
- 190 km (120 miles) S of PORT-VILA, Efate, Vanuatu
- 245 km (150 miles) NNE of Tadine, Loyalty Islands, New Caledonia
- 1830 km (1130 miles) ENE of BRISBANE, Queensland, Australia

Location Uncertainty:
- horizontal +/- 27.2 km (16.9 miles);
- depth +/- 24.9 km (15.5 miles)

Parameters:
NST= 15, Nph= 15, Dmin=>999 km, Rmss=1.13 sec, Gp=115°,
M-type=body wave magnitude (Mb), Version=7

Source:
USGS NEIC (WDCS-D)

Event ID:
us2009ihan

Another strong earthquake took place 5 hours later. The same general area was affected (USGS)

© USGS

Seismic Hazard Map

Magnitude:
4.5

Date-Time:
- Thursday, June 25, 2009 at 11:45:37 UTC
- Thursday, June 25, 2009 at 10:45:37 PM at epicenter

Location:
19.441°S, 168.638°E

Depth:
301.6 km (187.4 miles)

Region:
VANUATU

Distances:
- 65 km (40 miles) W of Isangel, Tanna, Vanuatu
- 190 km (120 miles) S of PORT-VILA, Efate, Vanuatu
- 245 km (150 miles) NNE of Tadine, Loyalty Islands, New Caledonia
- 1830 km (1130 miles) ENE of BRISBANE, Queensland, Australia

Location Uncertainty:
- horizontal +/- 27.2 km (16.9 miles);
- depth +/- 24.9 km (15.5 miles)

Parameters:
NST= 15, Nph= 15, Dmin=>999 km, Rmss=1.13 sec, Gp=115°,
M-type=body wave magnitude (Mb), Version=7

Source:
USGS NEIC (WDCS-D)

Event ID:
us2009ihan