07-29-2018, 06:10 PM
Felt in Keaau
EQ 10:02PM 7/29
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07-29-2018, 06:32 PM
Looks like USGS listing a 3.4 up in Volcano at 10:02pm followed by a 3.9 magnitude down on the south flank at 10:03pm.
https://earthquake.usgs.gov/earthquakes/...#executive https://earthquake.usgs.gov/earthquakes/...#executive
07-29-2018, 07:11 PM
It was a 4.1 10 miles SE of Volcano, whereas normally they are in the 3 range 3 miles SW of Volcano.
07-30-2018, 04:54 AM
HVO finally got the info updated, almost 4.1 mag on the east side of Hawaii Volcanoes National Park, a little deeper than most of the recent stuff (4.6 mi):
Coordinates:-155.1226667, 19.3508333 Depth:7.38 km (4.6 mi) Magnitude:4.07 Date:2018-07-29 22:03:03 local 2018-07-30 08:03:03 UTC Age: 0.4 days Distance From:16km SE of Volcano, Hawaii Number of Phases:64 Azimuthal Gap (deg):125 Distance to Nearest Station:0.05 deg Vertical / Horizontal Error:0.41 km / 0.34 km Event ID:hv70496917 Contributing Network:HV
07-30-2018, 05:01 AM
07-30-2018, 05:46 AM
Hmm...
This doesn't quite add up; the daily activity for months in Volcano has been listed as over five and they have not been felt by me, the one last night felt as strong as first one on May 4 or 5, yet this one supposed to be 4.1!!
07-30-2018, 06:02 AM
MBB
The daily quakes at the summit are not true quakes. They are equivalent to a 5 on the seismograph. If you are right up there in that area then it shakes like a 5 but not from a few miles away. Last night was a true quake. Edited to add this: The reason the quakes at the summit are not true quakes is because it is simply an unstable collapse of earth or blast of land mass around the crater as pressure blows out. That is what is shaking. - I think |
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