Volcano Watch is a weekly newsletter written by the scientists at the US Geological Survey's Hawaiian Volcano Observatory. It is published in the Hawaii Tribune-Herald's Sunday newspaper and the West Hawai'i Today's Monday newspaper, and posted here the following Monday or Tuesday. While primarily addressed to the residents of the Big Island of Hawai`i, some articles may have a broader scope. Article topics may range from volcanic features on the Big Island, volcanic hazards, informational topics of Long Valley, Montserrat, or Alaska, to topics about the Hawaiian Volcano Observatory.

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On Kīlauea's east rift zone, surface lava flows were active in the upper part of the flow field, about 3.5–5 km (2–3 miles) southeast of Pu`u `Ō `ō, over the past week. The flow field on the coastal plain remains inactive after activity stalled there over a month ago, and there is no active ocean entry. Occasional short lava flows and a small lava pond have been observed over the past week within Pu`u `Ō `ō’s crater.

One earthquake beneath Hawai‘i Island was reported felt this past week. A magnitude-2.4 earthquake occurred at 9:18 a.m., HST, on Thursday, January 26, 2012, and was located 4 km (3 mi) northwest of Volcano at a depth of 31 km (19 mi).

Visit our Web site (http://hvo.wr.usgs.gov) for detailed Kīlauea and Mauna Loa activity updates, recent volcano photos, recent earthquakes, and more; call (808) 967-8862 for a Kīlauea activity summary; email questions to askHVO@usgs.gov.

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