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Mag 7.8, 263km distant, 15km deep

13Nov2016 11:02:56 Z

drum

The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.

The video runs at 15 times real time speed.

This is a magnitude 7.8, 15km deep, earthquake, 15 km north-east of Culverden

It was recorded about 263km distant in Kapiti, New Zealand.

The S wave arrives about 22.6 seconds after the P wave.

263km / 22.6 seconds = 11.6km per second of PS difference.

This was the third largest earthquake recorded in New Zealand.

It was very complex with ruptures observed on three faults over around 150km.

This record which covers only two and a half minutes shows three main S wave arrivals and several later and smaller shocks. Almost constant shaking was observed in Wellington over two and a half hours.

Three people appear to have died in consequence. A woman when the historic Elms homestead collapsed near Kaikoura; a man who suffered a heart attack at the time; and a man who was found dead under a bookcase in Lower Hutt near Wellington nearly two weeks after the event.

There was significant uplift and land movement mainly in coastal areas and with many landslides over a wide area. The event also pressaged slow slip activity under the lower North island.

A tsunami was generated which damaged at least one house.

State Highway One and the Main Truck Railway Line were damaged and blocked in many places and are expected to take many months to reopen. These are the main routes between most of the South Island and the North.

Kaikoura was completely cut off by land and remains very isolated two weeks after the event with only very limited access via an inland route which also sustained extensive damage.

Turn it up.

eq

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20180819T001937Z8.22600570
20180722T031444Z5.213372.5
20180622T062100Z4.914516.7
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20180127T023031Z5.1109123.6
20171207T083016Z5.015174.5
20171206T005645Z4.9205176
20171022T041059Z5.421313
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20170623174939Z3.85039
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20170111001922Z5.111311
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20161217T105112Z7.94480100
20161212051421Z4.712815
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20161127083111Z4.54127
20161113110256Z7.826315
20161110180513Z3.93842
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20161103143613Z4.44437
20161017131515Z4.27173
20160912000112Z3.44724
20160909220249Z5.110480
20160902144659Z4.04932
20160901163755Z7.158122
20160901163755Z7.158122
20160805110854Z4.36345
20160511195518Z5.23127
20160511191532Z4.73128
20160511134423Z5.229688
20160502002653Z4.6418103
20160411194106Z5.23724
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20160401020004Z3.4275
20160314102804Z522728
20160310202401Z4.69511
20160302235428Z4.68518
20160222030956Z51328
20160214001343Z5.734515
20160211011722Z3.8355
20160209003900Z5.721248
20160201190043Z6.61212366
20160111001439Z4.6336142
20160104000755Z5.1122.525
20151230195050Z5.1135.4110
20151229233618Z4.782.322
20151101054211Z5.418039
20151012080501Z5.811424
20150923184751Z5.1299167
20150824094125Z5.81245149
20150713205745Z4.162.431
20150713160932Z4.341.55
20150702170007Z4.112154
20150629092731Z4.210384
20150530112400Z8.58420590
20150521141532Z3.617.526
20150515053435Z4.612116
20150505113417Z4.112047
Mag 5.8, 651km distant, 4km deep
Mag 4.2, 355km distant, 166km deep
Mag 6.2, 214km distant, 52km deep
and again, faster, with foreshock
Mag 5.1, 111km distant, 24km deep
Mag 3.5, 44km distant, 52km deep
Mag 3.8, 73km distant, 35km deep
Mag 3.6, 102km distant, 126km deep
Mag 3.6, 97km distant, 46km deep
Mag 4.3, 16km deep, 67km distant
piledriver
Deep and distant
How far was my earthquake?