(MUSIC)

JOAN CARTAN-HANSEN, HOST:

WHAT DOES A VOLCANO SOUND

LIKE?

HERE'S AN EXAMPLE OF AN ERUPTION

IN A HOUSING AREA NEAR THE

VOLCANO KILAUEA IN HAWAII.

(ROARING ERUPTION)

THE FOUNTAINS OF LAVA

WERE AT LEAST 300 FEET HIGH.

IN THIS EXAMPLE A FISSURE OPENED

UP ON SOMEONE'S DRIVEWAY NEAR

KILAUEA.

SOUND IS A VERY IMPORTANT CLUE

TO WHAT A VOLCANO IS DOING.

LAVA AND GAS MOVE AROUND UNDER

THE GROUND AND MAKE NOISE.

THOSE SOUNDS ARE MUCH TOO LOW

FOR HUMANS TO HEAR, BUT

SCIENTISTS USE SPECIAL

INSTRUMENTS TO RECORD THOSE

SOUNDS AND EARTHQUAKES.

AND BY STUDYING THOSE RECORDINGS

SCIENTISTS CAN GET AN IDEA OF

WHAT MAY BE GOING ON DEEP INSIDE

THE VOLCANO.

AND THAT MAY HELP THEM FORECAST

FUTURE ERUPTIONS AND SAVE LIVES.

(ROARING ERUPTION)

FOR MORE INFORMATION

ABOUT VOLCANOES CHECK OUT

THE SCIENCE TREK WEBSITE.

YOU'LL FIND IT AT

IDAHOPTV.ORG/SCIENCE TREK

(MUSIC)