Earthwatchers

[ Earthwatchers ] [ Main Menu ]


  


95484


Date: December 07, 2021 at 14:22:43
From: Cinnamon in Oregon, [DNS_Address]
Subject: So...any ideas what's up at the Oregon Coast today?

URL: https://pnsn.org/


I am counting 7 quakes within the last 9 hours.

First 1 was a 2.2. Next 4 were 4 pointers. Last 2 were each 5.5. Would be better if the trend were going down, but they are inching upward.....hmmm....


Responses:
[95485] [95486] [95487] [95488] [95489] [95494] [95495] [95496] [95497] [95499] [95505] [95508]


95485


Date: December 07, 2021 at 17:48:49
From: sher, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


Now there looks to be two 5.8’s !


Responses:
[95486] [95487] [95488] [95489] [95494] [95495] [95496] [95497] [95499] [95505] [95508]


95486


Date: December 07, 2021 at 18:06:23
From: jordan, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


Blanco Transform Fault exhibits behavior like this pretty often. There have been 156 quakes of mag 4.5 or larger just in the past 20 years on the Blanco between the ridge segments.


Responses:
[95487] [95488] [95489] [95494] [95495] [95496] [95497] [95499] [95505] [95508]


95487


Date: December 07, 2021 at 18:23:42
From: jordan, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


Swarms

On January 9, 1994, a large series or swarm of earthquakes occurred in the East Blanco Depression. Acoustic signals recorded during these events indicated that an eruption occurred in this zone. Further investigation revealed an active hydrothermal vent, the first of its kind to be discovered in a transform fault zone.[10]

In March and April 2008, a swarm of moderate earthquakes occurred both near and within the Blanco zone. The swarm began on March 30 when over 600 measurable tremors began occurring north of the zone within the Juan de Fuca Plate. On April 23, activity moved to the Blanco fault zone itself, near its junction with the Gorda Ridge.[11]

Another series of earthquakes occurred in June 2015. Spread out over a period of a few days, some reached magnitudes of 5.8.[

1985-03-13 M 6.5 259 km W of Bandon, Orego
1994-10-27 M 6.3 248 km W of Bandon, Oregon
2000/06/02 M 6.0
2003-01-16 M 6.3
2008-01-10 M 6.3 242 km WNW of Bandon, Oregon
2012/04/12 M 6.0 266 km W of Bandon, Oregon
2015/06/01 M 5.8
2015/06/01 M 5.9
2021/12/07 M 5.5
2021/12/07 M 5.5
2021/12/07 M 4.9
2021/12/07 M 5.8
2021/12/07 M 5.8


Responses:
[95488] [95489] [95494] [95495] [95496] [95497] [95499] [95505] [95508]


95488


Date: December 07, 2021 at 18:33:11
From: sher, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


Thank you Jordan!


Responses:
[95489] [95494] [95495] [95496] [95497] [95499] [95505] [95508]


95489


Date: December 07, 2021 at 18:42:00
From: jordan, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?

URL: https://www.wweek.com/news/2019/12/05/scientists-are-studying-a-massive-underwater-volcano-off-the-coast-of-oregon/


300 miles off the coast of Oregon lies an active volcano that the world has never seen before, with a magma reservoir two thirds the length of Manhattan. ... Langseth, gathering images to create a 3D map of the behemoth and its magma chambers. The New York Times first reported the group's expedition and its findings


Responses:
[95494] [95495] [95496] [95497] [95499] [95505] [95508]


95494


Date: December 07, 2021 at 22:32:58
From: Cinnamon in Oregon, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


Wow! Thanks for sharing, Jordan!


Responses:
[95495] [95496] [95497] [95499] [95505] [95508]


95495


Date: December 07, 2021 at 22:42:00
From: jordan, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?

URL: https://pnsn.org/earthquakes/recent


this swarm just became interesting for shocks to something bigger? past hour

5.1 2021/12/07 21:51:07 PST 10.0 km
4.9 2021/12/07 21:50:10 PST 10.0 km
5.5 2021/12/07 21:43:44 PST 10.0 km
5.5 2021/12/07 21:43:30 PST 10.0 km
5.3 2021/12/07 21:33:46 PST 10.0 km
5.5 2021/12/07 21:15:24 PST 10.0 km
4.3 2021/12/07 20:54:16 PST 10.0 km


Responses:
[95496] [95497] [95499] [95505] [95508]


95496


Date: December 07, 2021 at 23:43:31
From: jordan, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


update:

5.5 2021/12/07 23:18:28 PST 10.0 km
4.1 2021/12/07 23:17:12 PST 10.0 km
4.5 2021/12/07 22:46:28 PST 10.0 km
3.6 2021/12/07 22:35:30 PST 10.0 km
4.3 2021/12/07 22:29:09 PST 10.0 km
4.3 2021/12/07 22:24:54 PST 10.0 km


Responses:
[95497] [95499] [95505] [95508]


95497


Date: December 08, 2021 at 06:59:56
From: jordan, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?

URL: https://pnsn.org/earthquakes/recent


Swarm Update over night

4.6 2021/12/08 05:57:40 PST 10.0 km
5.1 2021/12/08 05:30:21 PST 10.0 km
3.9 2021/12/08 04:42:30 PST 10.0 km
4.3 2021/12/08 04:25:25 PST 10.0 km
4.4 2021/12/08 04:12:44 PST 10.0 km
4.7 2021/12/08 03:29:41 PST 10.0 km
4.1 2021/12/08 02:59:02 PST 10.0 km
5.2 2021/12/08 02:50:25 PST 10.0 km
5.1 2021/12/08 02:14:30 PST 10.0 km
4.3 2021/12/08 02:02:13 PST 10.0 km
4.4 2021/12/08 01:56:38 PST 10.0 km
4.0 2021/12/08 01:35:00 PST 10.0 km
4.2 2021/12/07 23:36:57 PST 10.0 km
3.7 2021/12/07 23:30:46 PST 10.0 km


Responses:
[95499] [95505] [95508]


95499


Date: December 08, 2021 at 10:32:02
From: ryan, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


that is a lot of movement that is putting a lot of stress on other segments of the fault...highly likely imo that this is a foreshock sequence...


Responses:
[95505] [95508]


95505


Date: December 08, 2021 at 20:53:23
From: chaskuchar@stcharlesmo, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


or an eruption of the volcano...


Responses:
[95508]


95508


Date: December 08, 2021 at 21:52:40
From: Barb sw wa, [DNS_Address]
Subject: Re: So...any ideas what's up at the Oregon Coast today?


I've been thinking the very same thing!!


Responses:
None


[ Earthwatchers ] [ Main Menu ]

Generated by: TalkRec 1.17
    Last Updated: 30-Aug-2013 14:32:46, 80837 Bytes
    Author: Brian Steele