BEGINNING IN THE LATE 1980s, THE VOLCANO DISASTER ASSISTANCE PROGRAM, BASED AT THE CASCADES VOLCANO OBSERVATORY, HAS SENT EQUIPMENT AND ENTERTISE TO 14 DIFFERENT COUNTRIES.
~REAL-TIME SEISMIC MONITERING SYSTEMS ALERT SCIENTISTS ALMOST INSTANTLY TO EVEN A VOLCANO'S SMALLEST RUMBLE.
~GAS DETECTION DEVICES MONITOR EMISSIONS ASSOCIATED WITH ERUPTIONS.
~GPS (GLOBAL POSITIONING SYSTEM) RECEIVERS, ALONG WITH LASER RANGE-FINDERS, MONITOR GROUND DEFORMATIONS.
~LAHAR DETECTION SYSTEMS WATCH FOR SIGNS OF MUD-FLOWS.
TIHMETERS SENSE THE SLIGHTEST CHANGES IN ELEVATION.