14-15 Nove 2018 - 3 distant (from me) M6+ quakes

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SUMMARY

On November 14-15, 2018, three significant earthquakes were recorded: a magnitude 6.0 quake 76 km SSW of Ust'-Kamchatsk Staryy, Russia; a magnitude 6.3 quake 111 km E of Visokoi Island, South Georgia and the South Sandwich Islands; and a magnitude 6.2 quake 132 km E of Kirakira, Solomon Islands. The discussion highlighted the absence of an S-wave arrival for the 6.3 quake from South Sandwich Islands, indicating a possible S-wave shadow zone. The seismogram analysis revealed a higher frequency content for the latest event compared to the previous two.

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davenn
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M 6.0 - 76km SSW of Ust'-Kamchatsk Staryy, Russia

M 6.3 - 111km E of Visokoi Island, South Georgia and the South Sandwich Islands

M 6.3 - Southern East Pacific Rise
181114-15 UT M6.2 Kamchatka Penin, 6.3 Sandwich Isl, 6.3 EPR zhi annotated.GIF
Interesting to note that there is no obvious S wave arrival for the 6.3 from South Sandwich Isl. reg.
Quite probably that I am in the S-wave shadow zone.

https://www.iris.edu/hq/inclass/animation/seismic_shadow_zones_s_wave_shadow_zone
Dave
 

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  • 181114-15 UT M6.2 Kamchatka Penin, 6.3 Sandwich Isl, 6.3 EPR zhi annotated.GIF
    181114-15 UT M6.2 Kamchatka Penin, 6.3 Sandwich Isl, 6.3 EPR zhi annotated.GIF
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and yet another one, a M6.2, Solomons region

M 6.2 - 132km E of Kirakira, Solomon Islands

the very bottom trace on the seismogram

181114-16 UT M6.0 Kamchatka, 6.3 Sandwich Isl, 6.3 EPR, 6.2 Solomons zhi.gif
"Mother Earth's" last ditch effort to catch up on the lagging averages for the year hahaha

Note the much higher frequency content of this latest event compared to the two immediately above it
only around 2850km from my location/seismic station.Dave
 

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  • 181114-16 UT M6.0 Kamchatka, 6.3 Sandwich Isl, 6.3 EPR, 6.2 Solomons zhi.gif
    181114-16 UT M6.0 Kamchatka, 6.3 Sandwich Isl, 6.3 EPR, 6.2 Solomons zhi.gif
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No more earthquakes for New Zealand, please!
 
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