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New Crater Lake at the Active West Crater. Turrialba Volcano, Costa Rica.
From: "Eliecer Duarte" <eduarte@xxxxxxxxx>
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New Crater Lake at the Active West Crater. Turrialba Volcano, Costa Rica.
Fieldwork on Turrialba Volcano (Costa Rica) showed a newly formed crater lake in
the active west crater.
OVSICORI-UNA staff reported since February an accelerated sealing process at the
bottom of west crater due to frequent rock and mudslides. Sustained rains started in
may provoking that water body to stay in the basin.
The (70x70m), 1m deep, light green lake shows minor bubbling in the SW and NE
shores due to preexistent gas outputs. Rock cracking can be heard from the other side
of the crater due to the contact of hot fumarole outlets (above 370ºC) with the lower
parts of the west walls.
More details in a Spanish report at:
http://www.ovsicori.una.ac.cr/vulcanologia/informeDeCampo/2011/InfturrilagoW9ju
n11.pdf
Regards.
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