The surface of the earth is made of tectonic ... View this post on Instagram The surface of the earth is made of tectonic plates that float on a rocky mantle lying between the surface and the core, which makes it vulnerable to earthquakes and volcanic eruptions. To learn more, join our science trips in the U.K. by www.sciencetrips.co.uk #earthquake #earthquakes #earthquaker #earthquakerdevices #earthquakestory #earthquakeseason #earthquakerelief #earthquakedamage #earthquakebar #eqd #tsunami #gearnerd #sulawesitengah #prayforpalu #notpedalbored #knowyourtone #guitarpedal #gearaholics #earth #tonemob #photography #pedalgram #palu #musicequipement #guitarpedals #guitareffects #guitar #gearwire #effectspedals #effectpedals A post shared by Science Trips UK (@sciencetripsuk) on Oct 20, 2018 at 4:14am PDT