04-10-2008, 07:44 AM
from this morning's hvo update...
"A small explosion at 11:08 pm ejected a few blocks up to the rim of Halema`uma`u crater, a little more than 70 m (230 ft) above the vent. By morning light, the vent appeared enlarged; the most obvious change was the removal of a lava rim that separated the vent from the crater floor. The April 9 explosion was smaller than the March 19 event. Preliminary data showed that the debris from last night's explosion differed from the March 19 debris in three important ways: 1) the size of the deposit was smaller, 2) the debris was deposited in a more southerly direction, and 3) the debris contained volcanic glass shards. Many of the ejected fragments were hot enough to melt through the plastic ash collectors."
"A small explosion at 11:08 pm ejected a few blocks up to the rim of Halema`uma`u crater, a little more than 70 m (230 ft) above the vent. By morning light, the vent appeared enlarged; the most obvious change was the removal of a lava rim that separated the vent from the crater floor. The April 9 explosion was smaller than the March 19 event. Preliminary data showed that the debris from last night's explosion differed from the March 19 debris in three important ways: 1) the size of the deposit was smaller, 2) the debris was deposited in a more southerly direction, and 3) the debris contained volcanic glass shards. Many of the ejected fragments were hot enough to melt through the plastic ash collectors."