Saturday, 28 January 2012

El Hierro at Yellow-Red Alert - on-going report

El Hierro Volcano : Yellow-Red alert – at least 300 SLS in 2 hours tim

Update 28/01 – 11:32 UTC
- A lot of SLS this morning
- NO earthquakes since midnight UTC
- Harmonic tremor had a hard time surviving at 02:00 but picked up at 07:01 and remains minimally active until now.



- Salvamar Adhara is out fishing lava balloons. Some stones seem to be really big today. Look at the size of the black stones in the water in relation to the size of the Salvamar Adhara.
- Joke just reported that in 2 hours time (from 08:00 until 10:00) she has seen more than 300 SLS. She also pointed out that the lava baloons are surfacing further to Tenerife (to the left) than ever before. We think this is normal as it was described in the lava balloon document we have published a few weeks ago. Some SLS are only starting to float during the rolling down process from the vent to the base of the volcano. The reason was not explained, but it might be the breaking apart during the rolling process of a heavier part enabling gas inside to start the floating process.
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