Rumbleometer
Virtual Site
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The Rumble site is located within the central collapsed area of the 1998 lava flow. The Rumbleometer (or VSM) is a NOAA seafloor instrument used to monitor volcanic activity. During the 1998 eruption, the instrument was caught in the new lava flow! Initially, it was a mystery how the instrument did not get buried by the new lava, because it was located in the bottom of a collapse area 3 meters deep! Clearly the lava had been more than 3 meters higher here before the flow drained-out and collapsed. Why wasnt the instrument completely buried? How had it survived the eruption? We did not know for sure until the Rumbleometer was rescued and pulled out of the lava in 1999 and the data it recorded was examined. More ... |
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