Third earth­quake hits Mex­ico

The Week - Junior - - This Week’s Big News -

On 23 Septem­ber, Mex­ico was hit by its third earth­quake in four weeks. The 6.1 mag­ni­tude earth­quake struck near Ma­tias Romero in Oax­aca state, which had al­ready been badly hit by the an earth­quake that oc­curred on 8 Septem­ber.

The worst dam­age was caused by the sec­ond earth­quake, which struck 75 miles from Mex­ico City – one of the busiest cities in the world – on 19 Septem­ber. It caused the most dam­age be­cause it was close to a ma­jor city. At least 305 peo­ple died.

The Earth’s sur­face is bro­ken up into about 12 pieces called ma­jor tec­tonic plates, which fit to­gether like a jig­saw. The plates are con­stantly mov­ing on top of magma – su­per-hot lava – and they some­times grind against each other. When this hap­pens, fric­tion builds up be­tween the plates un­til pres­sure is re­leased. How­ever, it is thought that a rup­ture in a tec­tonic plate caused Mex­ico’s earthquakes. Mex­ico lies on the Co­cos tec­tonic plate, which means it is prone to earthquakes.

Thou­sands of vol­un­teers, and the coun­try’s army and po­lice, worked to res­cue peo­ple who were trapped un­der rub­ble from fallen build­ings. Peo­ple also gave away clothes, bed­ding and pet food.

Res­cuers help out.

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