Recent Updates from the U.S. Geological Survey Volcano Hazards Program http://volcanoes.usgs.gov/ U.S. Geological Survey Volcano Hazards Program Sun, 19 May 2013 12:28:13 +0000 Elevated surface temperatures at the summit of Cleveland Volcano were observed in satellite images this morning. AVO has received no reports of ash emission or other indications of eruptive activity over the past 24 hours. Sudden explosions of blocks and ash are possible with little or no warning. Ash clouds, if produced, could exceed 20,000 feet above sea level. If a large ash-producing event occurs, nearby seismic, infrasound, or volcanic lightning networks should alert AVO staff quickly. However, for some events, a delay of several hours is possible. Cleveland Volcano does not have a ...http://volcanoes.usgs.gov/activity/archive/current.php?noticeid=8622http://volcanoes.usgs.gov/activity/archive/current.php?noticeid=862252.8222 -169.945WATCHORANGE Seismic tremor, intense elevated surface temperatures, and ash, gas and steam emission persist at Pavlof Volcano. A narrow plume of steam, ash, and gas, occasionally up to 20,000 ft. above sea level, and extending southeast from the volcano over the North Pacific Ocean is visible in satellite images today. Pilot reports from this morning indicate that lava fountaining and ash emission continues. Minor to trace ash fallout could be occurring on the north, east and southeast flanks of the volcano and possibly on parts of Pavlof Bay and adjacent waters southeast of the volcano. Nearby ...http://volcanoes.usgs.gov/activity/archive/current.php?noticeid=8621http://volcanoes.usgs.gov/activity/archive/current.php?noticeid=862155.4173 -161.8937WATCHORANGE Activity Summary: At the summit, tiltmeters recorded the start of DI inflationary tilt and the lava lake level rose. At Pu`u `O`o vent in the middle east rift zone, there was no new activity within the crater but the Kahauale`a II lava flow remained active on the north base of the cone. To the southeast, the Peace Day pali flow remained active on the coastal plain while the main flow branch continued to enter the ocean in at least 2 locations spanning the Hawai`i Volcanoes National Park boundary. Gas emissions remained elevated. Recent Observations at Kilauea summit: The ...http://volcanoes.usgs.gov/activity/archive/current.php?noticeid=8620http://volcanoes.usgs.gov/activity/archive/current.php?noticeid=862019.421 -155.287WATCHORANGE