Felt earthquakes in Australia

Introduction

The public are encouraged to report felt earthquakes using the on-line form on this site. Similar forms are also provided by Geoscience Australia, and the Seismology Research Centre in Melbourne.

Modified Mercalli Scale

These data will be used to assign a value on the Modified Mercalli Intensity scale, and to generate isoseismal maps

On this page, some of the data received are summarised

Recent WA events reported to this website

DATE	TIME	MAG	LOCATION	# REPT	REMARKS
10 Oct 2007	07:58	4.8	Broome Hill	22	significant local damage
28 Aug 2007	23:33	4.6	off Augusta		felt widely
31 March 2007	01:50	2.5	near Collie	3 reports
15 Feb 2007	00:38	5.3	Shark Bay WA	15 reports
22 Dec 2006	1210(GMT)	2.9	near Kalgoorlie	7 reports	possible mine blast
04 March 2006	01:02	2.7	near Donnybrook	17 reports	earthquake

..

EVENT DATE	EVENT TIME	EVENT LOCATION	# REPORTS	REMARKS
08 March 2007	0234	near Healesville, Vic	approx 80 reports	Mag 3.5
22 October 2006	1236	near Caulfield, Vic	approx 90 reports	Mag 2.9
21 Oct 2006	0951	SE of Cowra NSW	approx 12 reports	Mag 4.2
13 Aug 2006	1330	near Oolong NSW	approx 6 reports	mag 3.3 earthquake

..

Preliminary plot showing locations of persons reporting event felt near Melbourne, Vic, on 8 March 2007

The inner circle represents approximate region within which MM intensity 4 and above might be experienced

The outer circle represents approximate boundary for MM III

Plot of reports received by Geoscience Australia after Mag 4.2 event near Bowral, NSW, in December 2003

more plots for important historical Australian events ( from isoseismal atlases published by Geoscience Australai).

GRAPH SHOWING ESTIMATED MM INTENSITY Vs DISTANCE

Data compiled by David Burbidge (Geoscience Australia)

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