|HVO's IR of Kilauea's coastal plain on April 13, 2012.|
Kīlauea Volcano, Hawai`i: High lava levels, flows advance on coast.Lava levels in Kīlauea's newest crater, the Overlook Vent within Halema‘uma‘u, have reached their highest point of 70m / 230ft below the 1974 crater floor, matching conditions in March 2011 just prior to the 5-day Kamoamoa fissure eruption. Glow from the edge of Kīlauea caldera has been strong over the past month, except on exceptionally rainy nights! Speaking of the volcano's summit, it has been swelling significantly over the past 6 months - a total increase of 6cm / 2.4in across the caldera! This is not as fast as the previous 12 months, but still notable! Meanwhile, lava flows on the coast persist and are less than 1.4km / 0.9mi from reaching the ocean, but don't seem to be in a hurry to get there. The flows are still quite active, but spreading out across the plain rather than focusing in one direction. They are still accessible and the hike (with proper access across private land) is getting shorter! At some point soon, there may be the chance to safely see an ocean entry, that is if nothing else changes in the meantime... stay tuned! Check out the new webcam compilation page, featuring near-real-time data streams from the USGS-HVO for Kilauea HERE.
Reventador Volcano, Ecuador: Steaming and ash emission.Reventador continues to be mildly active with ongoing weak to moderate steam and ash emissions. The Instituto Geofísico reports a 2 km high column of steam and ash rising from Reventador volcano on 18 April. The ash cloud moved to the NW. IG characterizes the actual activity level (visual and seismic activity) of Reventador "moderate". No major changes have been observed at the volcano in recent days.
Popocatépetl Volcano, Mexico: Major increase in volcanic activity.The weekly Smithsonian/USGS volcanic activity report summarizes the recent increase of Popocatépetl volcano as follows: During 11-15 April steam-and-gas emissions from Popocatépetl occasionally contained ash; emissions contained a substantial amount of ash on 12 April. Seismicity increased on 13 April and at 2220 an explosion ejected incandescent blocks that landed on the NE flank as far as 500 m away from the crater rim. A larger explosion at 2236 ejected incandescent blocks that landed even further away on all flanks; an ash plume rose 2 km above the crater and drifted ENE. Ashfall was reported in San Pedro Benito Juarez (10-12 km SE), where the explosion was also heard. On 14 April gas-and-steam plumes that contained small amounts of ash drifted SW. Multiple emissions occurred with increased incandescence from the crater. Ejected incandescent blocks landed back in the crater or on the flanks 500-800 m from the rim. Gas-and-ash plumes drifted ESE. Ashfall was reported in multiple towns, including Puebla (50 km to the E), San Pedro Benito Juarez, Santiago Xalitzintla (15 km NE), Tianguismanalco, and Atlixco (25 km SE). On 15 April an ash plume rose 1.5 km above the crater and drifted E. Gas-and-ash emissions rose 1 km above the crater on 16 April and were accompanied by ejected incandescent fragments that were deposited on the flanks, especially to the N and NE. Later that day ash plumes rose 2 km above the crater and drifted E. Ashfall was again reported in Puebla. CENAPRED increased the Alert Level at the volcano from Yellow Phase Two to Yellow Phase Three. During 16-17 April incandescence extended 300 m above the crater and gas-and-steam emissions were constant. Gas-and-ash plumes rose from the crater on 17 April.
Mt Lamington Volcano, Papua New Guinea: Uncertain report about smoke and ash emission.According to setyoufreenews.com, Mt Lamington volcano in New Guinea is showing some signs of becoming active. According to the brief news, locals from the community of Popendetta reported "smoke and ash emission on March 25". No original source or other reports could be located so far to confirm new activity. Mt Lamington volcano is an andesitic stratovolcano with a 560 m high summit lava dome that grew during 1951-56, following a brutal reawakening with a major explosive eruption in 1951, which produced lava flows and devastating pyroclastic flows, and killed about 3-4000 people.