Posted on 10/10/2002 7:02:20 AM PDT by Lokibob
In other recent news:
* Mt. Kilauea has been running hot in Hawaii since July (see photo above),
* there have been several (8 to 10) substantial quakes (4 - 5.8 range) in the Solomon Islands to the east of New Guinea in the last couple of weeks,
* Fiji has been banging away constantly before and after the twin (7.6 and 7.7) quakes of 8/19 with really deep (600 km) quakes, and
* Ruapehu, a volcano in New Zealand, has had an alert on Sept. 16th:
SCIENCE ALERT BULLETIN: RUA-02/02Click here for a large (143 kb) map of Oceania for perspective to these locations.
2.30 pm Monday, 16 Sept 2002Ruapehu Volcano update: Volcanic tremor signals
Since September 6 there have been four short-lived episodes of volcanic tremor at Ruapehu. The duration of these episodes have ranged from 8 to more than 40 hours (see plot below). Several similar episodes have been recorded this year, namely February 21 (~12hrs duration); May 17 (~24hrs) & 29 (~18hrs); June 17 (~24hrs) and July 15 (~8 hrs). The earlier episodes all had similar characteristics to the recent activity.
Go here for the full bulletin and accompanying graphic:
http://www.gns.cri.nz/earthact/volcanoes/bulletins/rua0202.htmGo here for the Ruapehu Volcano Cam:
http://www.geonet.org.nz/ruapehu.html
>Caldera volcanoes are types of volcano which have a large crater that sits on the magma chamber below, like a sealed lid on a kettle. When pressure builds up beyond a certain point, they can erupt with an earth-shaking power equal to many nuclear bombs.
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