Three quakes hit re­gion

Pilbara News - - News - Tay­lar Amonini

Three earth­quakes hit the Pil­bara in a mat­ter of days.

A “sig­nif­i­cant” earth­quake with a mag­ni­tude of 3.8 was recorded at 1.15am on June 10 south-west of Telfer at a depth of 10km.

Two smaller earth­quakes fol­lowed with a 2.8 mag­ni­tude at 2am the same day south-west of Telfer, fol­lowed by a mag­ni­tude 2.5 earth­quake north-east of New­man at 7.28am last Wed­nes­day.

Geo­science Aus­tralia duty seis­mol­o­gist Andrea Thomm said while no dam­age was caused, be­ing above a 3.0 mag­ni­tude, the quakes were sig­nif­i­cant in terms of re­search.

“In WA be­ing not densely pop­u­lated, we didn’t re­ceive re­ports of it be­ing felt but ac­cord­ing to our data it could have been felt from 50km to 100km away from the orig­i­nal lo­ca­tion,” she said. De­spite Aus­tralia be­ing al­most di­rectly in the mid­dle of a tec­tonic plate, earth­quakes oc­cur al­most daily with WA ac­count­ing for al­most a third of those.

“Aus­tralia’s plate is very fast­mov­ing at 6cm to the north a year and this causes fric­tion in the in­te­rior of Earth which is then re­leased through weak­nesses in the crust,” she said.

“Our crust is quite old and has be­come brit­tle.”

Ms Thomm said lo­cals should visit the website at ga.gov.au and re­port if they feel seis­mic ac­tiv­ity.

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