Taupo Volcanic Activity

darcyplumb · Unread post by **darcyplumb** » Tue 20/09/2022 13:33

I thought this was worth a mention. The first time the alert level has been changed I believe.

https://www.geonet.org.nz/vabs/6WkpJjHluMfBLGRAymIQjX

Richard · Unread post by **Richard** » Tue 20/09/2022 16:44

darcyplumb wrote: ↑Tue 20/09/2022 13:33 I thought this was worth a mention. The first time the alert level has been changed I believe.

https://www.geonet.org.nz/vabs/6WkpJjHluMfBLGRAymIQjX

There have been 17 previous episodes of unrest over the past 150 years. Several of these were more severe than what we are currently observing at Taupō. None of these episodes, or the many other episodes which would have occurred over the past 1800 years before written records were kept, ended in an eruption. The last eruption at Taupō volcano was in 232 AD ± 10 years. The chance of an eruption at Taupō remains very low in any one year.

So I take it the other 17 episodes were before the level systems was introduced

darcyplumb · Unread post by **darcyplumb** » Tue 20/09/2022 16:50

Richard wrote: ↑Tue 20/09/2022 16:44
darcyplumb wrote: ↑Tue 20/09/2022 13:33 I thought this was worth a mention. The first time the alert level has been changed I believe.

https://www.geonet.org.nz/vabs/6WkpJjHluMfBLGRAymIQjX

There have been 17 previous episodes of unrest over the past 150 years. Several of these were more severe than what we are currently observing at Taupō. None of these episodes, or the many other episodes which would have occurred over the past 1800 years before written records were kept, ended in an eruption. The last eruption at Taupō volcano was in 232 AD ± 10 years. The chance of an eruption at Taupō remains very low in any one year.
So I take it the other 17 episodes were before the level systems was introduced

It seems that way. Media are all over it of course. Interesting nonetheless.

harveyt86 · Unread post by **harveyt86** » Tue 20/09/2022 18:14

I bet Geonet deliberated for a while over this. Tough job trying to be conservative whilst not alarming the public. Especially with this volcano! No doubt will get a bit of attention around the world as well

Razor · Unread post by **Razor** » Thu 01/12/2022 00:10

Hmmmmm

harveyt86 · Unread post by **harveyt86** » Thu 01/12/2022 06:35

Imagine geonet has been a hive of activity overnight...

tgsnoopy · Unread post by **tgsnoopy** » Thu 01/12/2022 07:16

Wow, wouldn't want to live there right now (or be reliant on the Waikato River for drinking water).

https://www.geonet.org.nz/earthquake/weak

https://www.geonet.org.nz/volcano/monitoring/taupo

Loss of Hydro generation will also affect all of us if this escalates.

David · Unread post by **David** » Thu 01/12/2022 07:20

Main quake upgraded to 5.6! Wonder if it’s just coincidence or the recent movement of magma underground had destabilised a fault line

Nev · Unread post by **Nev** » Thu 01/12/2022 08:51

The only larger relatively shallow quake that I can find directly under the caldera itself was an estimated M6.0 in 1895.

Taupo Caldera Quakes ≥M5.0

Date .......... Mag ... Dep km

2022 Nov 30 ... 5.6 ..... 9
2019 Sep 04 ... 5.0 ..... 5
1984 Mar 05 ... 5.0 ..... 5
1984 Feb 21 ... 5.3 ..... 8
1982 Sep 09 ... 5.0 ..... 0
1968 Jan 30 ... 5.3 .... 12
1956 Mar 03 ... 5.3 .... 12
1953 Jul 04 ... 5.0 .... 12
1952 Jan 13 ... 5.1 .... 12
1922 Sep 05 ... 5.4 ..... 5
1922 Jul 14 ... 5.1 ..... 5
1895 Aug 18 ... 6.0 .... 12

BeaconHill · Unread post by **BeaconHill** » Thu 01/12/2022 12:17

Looks to have created a decent sized "surge" on the lake.

https://www.1news.co.nz/2022/12/01/phot ... upo-quake/

Will be interesting to see if Geonet post an article on the quakes impacts. I am sure they are out and about have a good old look around!

Razor · Unread post by **Razor** » Thu 01/12/2022 12:59

Looks like the bigger quake may have generated a small local surge

https://www.1news.co.nz/2022/12/01/phot ... lPv-07hotI

Pretty worrying night for locals I can only imagine

Still shaking like a leaf under the lake too with very regular small EQ's

BeaconHill · Unread post by **BeaconHill** » Thu 01/12/2022 15:00

Tsunami in Lake Taupō as measured by Niwa gauges at both ends of the lake. Time is one hour out due to NZST.

Images via Twitter user @Emily_M_Lane

55D52A85-79A6-4591-A031-037F9DAF7834.png

9EB4C65D-4336-4F75-8D41-654E4F845445.png

jamie · Unread post by **jamie** » Thu 01/12/2022 17:21

Amazing. Last night after being woken by the quake I went searching for lake level gauges online but couldn’t find any. I was a sneaky suspicion there would be water surges.

Sent from my iPhone using Tapatalk

Rogue · Unread post by **Rogue** » Fri 02/12/2022 09:08

Waiting to see the ground deformation from the two closest GPS stations to the epicenter, but as of yet neither of had an update. Latest data received 28/11/22

https://fits.geonet.org.nz/plot?siteID= ... u&days=300 (up)
https://fits.geonet.org.nz/plot?siteID= ... e&days=300 (east)
https://fits.geonet.org.nz/plot?siteID= ... n&days=300 (north)

https://fits.geonet.org.nz/plot?siteID= ... u&days=300 (up)
https://fits.geonet.org.nz/plot?siteID= ... e&days=300 (east)
https://fits.geonet.org.nz/plot?siteID= ... n&days=300 (north)

BeaconHill · Unread post by **BeaconHill** » Wed 14/12/2022 16:00

A link to the initial analysis report by Geonet on the impact on the quake to the lake and surrounding area. Makes for an interesting read.

https://www.geonet.org.nz/news/LuzOzDmQcQUUmdeiL67oX

And DO check out the ground deformation graphs in @rogue's post prior to this one!

I captured screen grabs of the last 30days readings for TGHO (Horomatangi Reef) GPS Station for the record as they will eventually roll off the graphs.

Up.png

East.png

north.png

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Taupo Volcanic Activity

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