Sep 30 2007
Stromboli Daily Update for 9/30/07
Current Stromboli status from INGV, translated via Google:
Official notice of 30-09-2007
Modernization to the hours 12,00 premises
(the hour ones specify to you in the text are all GMT)In the day odierna on the Island of Stromboli 3 units of staff INGV are present who four fields of monitoring operate within: Volcanology, Sismologia, Geochemistry and Deformations.
The data supplied in last the 24 hours from the nets of monitoring of the deformations of the ground (nets Topographical GPS and) istallate on the island do not show meaningful variations regarding the trend it records the previous days to you.
The data from the 13 stations are acquired that compose the sismica net. The recorded sismica activity in the last ones 24h it has introduced following characteristic (times GMT):
• The analysis of the sismogrammi has not evidenced marks them sismici combinable to franosi events.
• The amplitude of the vulcanico tremor has oscillated between a lower-middle and upper-middle level.
• Conteggio of the Very events the Long Period (VLP) it has supplied a value of approximately 11 events/hour.
• The amplitude of marks them VLP is on a low level.
• Localization of the source of marks them VLP by means of analysis of the semblance indicates
one comprised ipocentrale depth in the interval 400m - 500m s.l.m.
• The parameters of polarization of mark them sismico in the band of frequency VLP not
they show substantial variations in the position of the source.
• The amplitude of the explosion-quakes is on low values.
• They have been finds some events to you of type LP.The analysis of the acquired geochimici parameters in last the 24 hours, through the monitoring net continuous and the discreet measures, are of synthetized continuation:
• The temperature of the measured ground to 50 cm of depth from station SST02, located to Peak Over the Fossa, extension relief variations, not attesting itself on 60.5 °C approximately.
• The flow of CO2 from the ground measured from Station STR02 mails on the Peak over the Fossa extension a every day medium value of 5100 g m-2 d-1 in last the 24 hours. Such value is in light lessening regarding the previous days.
• Not there are modernizations on the measures of flow of SO2 measured from net FLAMES in
day of the 29 September.
• Relationship C/S of the plume of Stromboli, measured from the automatic station of Peak, relatively introduces to day 29 september a medium value of 7.
