A tiltmeter is a volcanic monitoring tool that measures _____.

a)vibrations and tremors in the ground

b)smoke plumes

c)ground swelling

d)water levels


do you mind exp it a little bit better thanks

2 answers

Read this site for your answer.

http://www.geomechanics.com/dspapp.cfm?appid=51
ABC Chile
Iquique, Chile
abc-mecanica de suelos santiago