Lab Volcano Facilities

Lab Volcano Facilities

The purpose of the Lab Volcanoes is to understand the timing, rates and other details of the magma supply of different volcanoes, in order to improve forecasts of future eruptions. To this end, laboratory volcanoes display very diverse monitoring tools that provide a constant flow of data.

EOS has developed volcano laboratories at Mayon (Southeast Luzon, Philippines) and Gede-Salak (West Java, Indonesia). These volcanoes span a wide range of degassing behaviours: Mayon is an openly degassing volcano, while Gede and Salak exhibit only minor degassing. The nuances on the degassing spectrum displayed by these volcanoes make them very valuable for fundamental research.

Salak
- 1 one-component analog seismograph (CVGHM)
- A-to-D converter
- 4 three-component short-period seismographs
- 2 three-component broadband seismographs

Gede
- 4 broadband seismic stations
- 1 short period seismic station (existing CVGHM site)
- 2 tiltmeters, co-located with broadband seismometers
- renovated and resurveyed GPS benchmarks, first measured in 2006 by CVGHM (Zaennudin, 2008), 2 or 3 of these will be converted into cGPS sites.
- 1 instrument for continuous monitoring of CO2 concentration
- Associated met stations, heat flow sensors
- All necessary telemetry connections to the observatory post of Gede and Salak via radio and cellular network, via 2 repeater stations, one of which is in a Telkomsel cellular tower. Data are then accessible at EOS and CVGHM Bandung via internet.

Mayon (PHIVOLCS instruments)
- 5 tilt meters (EOS)
- ~6 cGPS (3 EOS, PHIVOLCS)
- 5 broadband seismographs (4 EOS, 1 JICA)
- 3 short-period seismographs (JICA)
- 2 barographs (1 EOS, 1 JICA)
- 2 scanning mDOAS (EOS)
- 6 CO2 gas boxes (EOS/GMS)
- 6 heat flux sensors (EOS)
- 7 met stations (EOS)
- 2 well monitors (h, T, pH; EOS)