Earthquake Reports 23/12/11: 5.8 at 3:18pm, 5.3 at 2:06pm

Magnitude 5.8 - SOUTH ISLAND OF NEW ZEALAND
2011 December 23 02:18:02 UTC
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Earthquake Details
• This event has been reviewed by a seismologist.
Magnitude
5.8
Date-Time
• Friday, December 23, 2011 at 02:18:02 UTC
• Friday, December 23, 2011 at 03:18:02 PM at epicenter
• Time of Earthquake in other Time Zones

Location
43.491°S, 172.844°E
Depth
4.9 km (3.0 miles)
Region
SOUTH ISLAND OF NEW ZEALAND
Distances
15 km (9 miles) ENE of Christchurch, New Zealand
218 km (135 miles) SSE of Westport, New Zealand
291 km (180 miles) SSW of WELLINGTON, New Zealand
323 km (200 miles) NE of Dunedin, New Zealand
Location Uncertainty
horizontal +/- 11 km (6.8 miles); depth +/- 2.4 km (1.5 miles)
Parameters
NST= 82, Nph= 84, Dmin=20 km, Rmss=1.29 sec, Gp= 83°,
M-type=regional moment magnitude (Mw), Version=7
Source
• Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usc0007b9y
• Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.

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Magnitude 5.3 - SOUTH ISLAND OF NEW ZEALAND
2011 December 23 01:06:25 UTC
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• Details
• Summary
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• Scientific & Technical
• Additional Info
Earthquake Details
• This event has been reviewed by a seismologist.
Magnitude
5.3
Date-Time
• Friday, December 23, 2011 at 01:06:25 UTC
• Friday, December 23, 2011 at 02:06:25 PM at epicenter
• Time of Earthquake in other Time Zones

Location
43.456°S, 172.899°E
Depth
3.7 km (2.3 miles) (poorly constrained)
Region
SOUTH ISLAND OF NEW ZEALAND
Distances
21 km (13 miles) ENE of Christchurch, New Zealand
217 km (134 miles) SSE of Westport, New Zealand
285 km (177 miles) SSW of WELLINGTON, New Zealand
328 km (203 miles) NE of Dunedin, New Zealand
Location Uncertainty
horizontal +/- 13.5 km (8.4 miles); depth +/- 5 km (3.1 miles)
Parameters
NST= 97, Nph=100, Dmin=25.6 km, Rmss=1.19 sec, Gp=112°,
M-type=body wave magnitude (Mb), Version=3
Source
• Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usc0007b92
• Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.

ENDS

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