Friday, April 8
Tuesday, September 14
Thursday, July 9
Photo by Michael Armstrong: Two men climb an uplift on the beach below Bluff Point on Sunday.
BY MICHAEL ARMSTRONG STAFF WRITER
Like a giant fist punching through the earth, a 1,000-foot long section of the beach below Bluff Point rose up 20 feet from the tidelands sometime last Friday or late Thursday, pushing boulders up from the ocean bottom, cracking sandstone slabs and toppling rocks upside down.
Below Bluff Point, a new fissure opened up at the base of the 800-foot high cliff. The uplift could be a re-activation of a landslide that happened perhaps 12,000 years ago.
"There was just beach before," said Ron Hess, who lives on Bluff Road above the new uplift. "Now there are tidal pools."You can see a rock circle," said Marilyn Hess. "All you used to see was one big rock, and now you can see this uplift of rock."Scientists don't know exactly what caused the uplift. It would take an earthquake over magnitude 7 to cause an uplift that high, said Peter Haeussler, a geologist with the U.S. Geological Survey in Anchorage.
Saturday, June 27
The sun protects us from cosmic rays and dust from beyond the solar system by enveloping us in the heliosphere - a bubble of solar wind that extends past Pluto. These cosmic rays would damage the ozone layer, and interstellar dust could dim sunlight and trigger an ice age. However, when the solar system passes through very dense gas and dust clouds, the heliosphere can shrink until its edge is inside Earth's orbit.
Wednesday, May 20
RIYADH (Reuters) - Saudi authorities evacuated five western villages on Monday after tremors hit a volcanic region in the past weeks raising concerns of possible eruptions.
"There was a large quake, the largest so far," Ahmed al-Attas, vice president of the Saudi Geological Survey (SGS), told Reuters after civil defence officials evacuated the villages near the town of al-Ais.
Attas was referring to a 4.68 earthquake, which hit the region on Sunday. Al-Ais, 150 km (100 miles) northeast of the Yanbu on the Red Sea, is not close to the world's top oil exporter's oil and petrochemicals facilities.
The region lies on a fault line, according to SGS, which declined to comment on current magma levels, but newspapers reported that in the past few days magma levels had risen to 4 km (2.5 miles) below the surface from 8 km.
Fears of an eruption in dormant volcanoes in al-Ais have sent panic stricken residents voluntarily fleeing to the holy city of Medina and Yanbu last week.
The population of al-Ais, an ancient resting place for caravans travelling between the western and southern cities of the Arabian Peninsula and Syria, is estimated at around 60,000 people.
Saturday, May 2
Friday, April 24
Sunday, March 29
VIDEO: USGS Hawaiian Volcano Observatory
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.