Is New Caledonia Facing Increased Earthquake Activity?

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davenn
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The Loyalty Isl. E of New Caledonia has seen an ongoing burst of activity starting with a M 6.8 yesterday

https://earthquake.usgs.gov/earthquakes/eventpage/us1000aytk#executive

followed by a bunch of M5 + aftershocks, the latest being a M 6.1 about an hour ago at the time of writing this

https://earthquake.usgs.gov/earthquakes/eventpage/us1000azi3#executive

there was also a M 6.3 in the nthrn Banda Sea, Indonesia

https://earthquake.usgs.gov/earthquakes/eventpage/us1000ayz8#executive

Seismograph trace from station ZHI, Sydney, NSW, Australia, showing a dense burst of vertical ground-motion spikes over roughly an hour, with the strongest shaking near the start and later intensifying in the lower traces.
Satellite map of the southwest Pacific showing New Caledonia, the Loyalty Islands and part of the Southern Vanuatu Islands, with clustered orange and yellow earthquake markers east of the Loyalty Islands and a red line running north-south.


Satellite map of the Banda Sea region of Indonesia showing a cyan circle and orange circles labelled 6.3 north of the Banda Sea, with yellow circles to the southeast and red fault lines, Papua and Indonesia labelled on the right.
cheers
Dave
 
Attachments
  • Seismograph trace from station ZHI, Sydney, NSW, Australia, showing a dense burst of vertical ground-motion spikes over roughly an hour, with the strongest shaking near the start and later intensifying in the lower traces.
    171031-1101 UT M 7 x events vzhi.gif
    204.2 KB · Views: 1,328
  • Satellite map of the southwest Pacific showing New Caledonia, the Loyalty Islands and part of the Southern Vanuatu Islands, with clustered orange and yellow earthquake markers east of the Loyalty Islands and a red line running north-south.
    2017-10 to 11 Loyalty Isl events.jpg
    50.7 KB · Views: 1,307
  • Satellite map of the Banda Sea region of Indonesia showing a cyan circle and orange circles labelled 6.3 north of the Banda Sea, with yellow circles to the southeast and red fault lines, Papua and Indonesia labelled on the right.
    20171031 M6.3 nthrn Banda Sea loc map.JPG
    61 KB · Views: 1,472

Discussion

Dave, please tell the ground to stop shaking. It's considered extremely rude.
 
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Drakkith said:
Dave, please tell the ground to stop shaking. It's considered extremely rude.

it won't listen to me :frown:

there's yet another aftershock coming in as I type this ... a M 6.6 Loyalty Isl, New Caledonia

live seismo here... ( 5 minute updates)

http://www.sydneystormcity.com/seismograms.htm
 
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jedishrfu said:
A song for the occasion sung by Harry Belefonte
haha good one :smile:
 
https://www.stuff.co.nz/world/south-pacific/99050824/tsunami-alert-after-73-quake-hits

Tsunami waves have been detected in New Caledonia and Vanuatu after 7.0 magnitude earthquake struck.

Reuters reported the waves hit at 12.35pm (NZT). There was no word on damage.

The Pacific Tsunami Warning Center said waves as high as 1 metre (3.3 ft) above the high-tide mark were forecast to hit New Caledonia and smaller waves were expected in Vanuatu.

I am sure Dave will have his graphs detecting the quake.
 

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