Bogoslof Volcano Erupts

Bogoslof : Large explosive eruption ejects ash 10.6 km (35,000 feet) asl

Bogoslof volcanic ash cloud at 3:15 AM Mar 8 AKST. Cloud at least 35,000 ft asl.
Img by Dave Schneider,  https://www.avo.alaska.edu/images/image.php?id=107841

HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE  [USGS]

Wednesday, March 8, 2017, 9:10 AM HST (Wednesday, March 8, 2017, 19:10 UTC)

KILAUEA VOLCANO (VNUM #332010)
19°25’16” N, 155°17’13” W, Summit Elevation 4,091 ft (1,247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: Kīlauea Volcano continues to erupt at its summit and at the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō is entering the ocean at Kamokuna and is feeding surface flows on and above the pali. These lava flows pose no threat to nearby communities at this time. The summit deflationary trend of the past 2 days reversed early this morning to an inflationary trend. The lava lake was about 34 m (~112 ft) below the Overlook crater rim this morning. Seismicity in the upper East Rift Zone did not change significantly in the past day.

Summit Observations: Tiltmeters at Kīlauea’s summit began recording an inflationary tilt early this morning, reversing the deflationary trend of the past 2 days. The lava lake was measured this morning at about 34 m (~112 ft) below the Overlook crater. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Summit tremor continues to fluctuate in response to variations in lava lake spattering. Average daily summit sulfur dioxide emission rates were between about 6,600 and 1,900 metric tons/day during the last week in February, the most recent time when conditions permitted measurements. Seismicity in the upper East Rift Zone has returned to typical levels over the past couple of days, with just a few small earthquakes.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources at Puʻu ʻŌʻō, including the pit on the west side of the crater that holds a small lava pond. There were no significant changes in East Rift Zone seismicity over the past 24 hours. The tiltmeter at Puʻu ʻŌʻō recorded deflationary tilt over the past day. The sulfur dioxide emission rate from all East Rift Zone vents was about 250 metric tons/day when last measured on February 22, 2017. https://hvo.wr.usgs.gov/activity/kilaueastatus.php

Pāhoehoe lava from Kilauea Volcano

Pāhoehoe lava inches towards the ocean in Hawai‘i Volcanoes NP, 3/2/17 Photo/Janice Wei.

Bering Sea Drilling

Government seeks comment on possible Bering Sea drilling

ANCHORAGE, Alaska (Reuters) – The Interior Department’s Minerals Management Service on Tuesday announced it is launching an environmental review of possible offshore oil and gas drilling in the salmon-rich area of Bristol Bay, where energy exploration was temporarily banned following the Exxon Valdez disaster in 1989.

The area is also home to the world’s biggest sockeye salmon runs and a plethora of marine life, including some of the last known eastern Pacific right whales, a critically endangered species. Full report

Satellite image of the Yukon Delta and Bering Sea. This is how the Big Oil and media would like you to see the area: Alien, Icy, lifeless!

The Yukon Delta (Center) and Bering Sea (Left) image taken by NASA’s Aqua satellite March 8, 2004. (REUTERS/MODIS Rapid Responce Team/NASA-GSFC RCS)

Teeming with Life: Closeups of Yukon Delta and Bering Sea

“Rock Sandpipers drop from the air and into a roost along the shores of the Bering Sea, Yukon Delta National Wildlife Refuge, Alaska. Shorebirds form roosts as the tide rises. Once the tide drops and foraging sites are once again exposed, the roost disperses.” (Photo Credit: USGS, Alaska Science Center)

They can gain protection from aerial predators by forming large flocks, but they don’t stand a chance against the Big Oil!

“A flock of Dunlin wheels past at Egegik Bay, Alaska. These small shorebirds gain protection from aerial predators by forming large flocks.” (Photo Credit: USGS, Alaska Science Center)

“Recently hatched Rock Sandpiper chicks, St. Matthew Island, Alaska. Most shorebird chicks exit the nest quickly after hatch and begin to feed themselves, relying on parents for frequent brooding. Their coloration allows them to blend into their tundra surroundings, escaping the detection of predators.” (Photo Credit: USGS, Alaska Science Center)

The Pribilof Islands provide breeding grounds for more than two-thirds of the world’s northern fur seals. (Image and caption courtesy of USGS).

The Pribilof Islands are in the Bering Sea, approximately 770 mi west-southwest of Anchorage and 250 mi north of the Aleutian Islands. Approximately 3 million seabirds nest on the islands, and nearly 1 million northern fur seals—about 70 percent of the world’s northern-fur-seal population—migrate there each year to breed. Other animals on the islands include arctic foxes and herds of reindeer. (Photo courtsey of NOAA’s Office of Response and Restoration; caption courtesy of USGS.)

Common Murres at breeding sites on Bogoslof Island in 1999. Murres (including Thick-billed Murres) are excellent subjects for studies of food stress: They are numerous, relatively easy to capture and breed widely throughout the Bering Sea. Both species have declined markedly at some colonies in the Bering Sea since the 1970’s. (Photos and captions courtesy of ABSC USGS).

Black-legged and Red-legged Kittiwake breeding colony on Bogoslof Island. The Alaska Maritime National Wildlife Refuge is monitoring breeding success and chick growth rates at nest sites on Bogoslof and the Pribilof islands. (Photo and caption courtesy of ABSC USGS).

The sea otter is the keystone species for the nearshore marine environment. Sea otter populations are in decline both in California and Alaska, and the California population is listed as threatened under the Endangered Species Act. (Photo and caption courtesy of USGS, Santa Cruz Field Station).