VolcanoWatch Weekly [1 Apr 2011]

Summary of Weekly Volcanic Activity Report

[23 March-29 March 2011 — Source of volcano activity list: SI/USGS]

HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE — Thursday, March 31, 2011 8:01 AM HST (18:01 UTC)

KILAUEA VOLCANO
Location: 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 for past 24 hours: DI inflation started yesterday afternoon at the summit. The summit lava lake returned as the Pu`u `O`o lava lake episodically filled and drained while its level rose slowly. Summit seismicity was low, with a brief swarm of deep LPs while East Rift Zone seismicity increased slightly. Source

Lava Returns to Kīlauea Volcano’s east rift zone

Pu`u `Ō `ō crater seen on March 26 when  a small lake of fresh lava formed. Click image to enlarge.

Molten lava is seen in this webcam image deep in the vent inset within the east wall of Halema`uma`u Crater. Source

New Activity/Unrest:

• Karangetang [Api Siau], Siau I * [Group K]
• Kilauea, Hawaii    [Group H]
• Rabaul, New Britain [Group K]
• San Miguel, El Salvador [Group F]

* Mount Karangetang erupted about 6 hours after the March 11 Megaquake struck near the east coast of Honshu.

Map of Volcanoes

Map of Volcanoes. Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

Ongoing Activity:

• Bagana, Bougainville(PNG)
• Bulusan, Luzon (Philippines)
• Karymsky, Eastern Kamchatka (Russia)
• Kirishima, Kyushu (Japan)
• Kizimen, Eastern Kamchatka (Russia)
• Planchón-Peteroa, Central Chile-Argentina border
• Popocatépetl, México
• Sakura-jima, Kyushu
• Santa María, Guatemala
• Shiveluch, Central Kamchatka (Russia)
• Soufrière Hills, Montserrat
• Tengger Caldera, Eastern Java (Indonesia)

For additional information, see source.

Related Links:

• Messages From Earth’s Powerhouse
• A New Era of Intense Volcanic Unrest May Have Begun
• World’s Dormant Volcanoes Firing
• Kamchatka Volcanoes The Fat Lady?

FEWW Volcanic Activity Forecast

• Sumatra’s Mt Kerinci Erupts
• Volcano Watch Weekly: 23 April 2009
• Weekly Volcano Watch: 16 April 2009
• Weekly Volcano Watch: 2 April 2009

• FEWW Volcano Links
• Volcanoes
• FEWW Earthquake Links

• Earth’s Climate: A Solar Powered System

Other Related Links:

• U.S. Volcano Status Map
• Elevated Activity Page
• Links to Volcano Hazards Program Webcams