Sunday, March 29

USGS records hybrid seismic event at Kilauea volcano

March 26, 2009 - Hawaii Volcanoes National Park, Hawaii
VIDEO: USGS Hawaiian Volcano Observatory

USGS video still: robust brown plume associated with a hybrid seismic event at 11:03 am
The Hawaiian Volcano Observatory on the Big Island of Hawaii has released video of a robust brown plume associated with a "hybrid seismic event" on the summit of Kilauea at 11:03 am.

The HVO website says brown plumes like this one have appeared occasionally throughout the past year of eruptive activity at the summit, and are often associated with rockfalls.

According to the HVO daily update, Wednesday's activity started with at least two more dusty plumes followed by a larger collapse at 11:03 am and a large, dense, brown plume; there were several more brown plumes over the next two hours before settling to a white plume moving southwest from the crater.

Wednesday, March 25

Shock Dynamics

A new geology theory featuring impact-powered rapid
continental drift as an alternative to plate tectonics.

Saturday, March 21

Geologists spot steam plume over Redoubt

ANCHORAGE, Alaska — Alaska's Mount Redoubt is again drawing attention because of its potential for an explosive volcano.
Geologists at the Alaska Volcano Observatory say there's a steam plume rising about 1,000 feet above the mountain roughly 100 miles southwest of Anchorage. No explosive or ash activity such as occurred last Sunday has been identified and the observatory has not raised the warning level for the mountain.

Thursday, March 19

Quake Triggers Pacific Tsunami Alert

A tsunami alert issued after a major 7.9 magnitude earthquake struck off the Tonga islands region has been cancelled.
Tsunami alert triggered following earthquake and volcano eruption
The quake occured about 130 miles southeast of Nuku'alofa, Tonga, the US National Weather Service's Pacific Tsunami Warning Centre said.
A tsunami warning was issued for Tonga, Niue, Kermadec Islands, American Samoa and Fiji.
"Sea level readings indicate a tsunami was generated," the centre said in a bulletin.

Saturday, March 7

What is this object near Ursa Major?

Mr. Teles, from Serra dos Candeeiros (Portugal) send me this photograph taken last monday (2009 - 2rd March).
Near 23:00 PM, at zenital position, this glowing object stays in that position for several minutes. I looked for some nightsky charts from that day and didn't find anything. The Big Dipper (Ursa Major) is under the object. Could be comet Lulin in those coordinates?

Testing The Water GOM