Seismology

A small number of ASSA Members have become interested in recording seismic activity (Earthquakes) as part of their adventures into 'Earth Sciences'.

They, along with other like minded people across Australia, and have formed 'The Seismological Association of Australia Inc' (SAA).

 The devastating magnitude 7.5 earthquake in PNG 28th Feb 2018 recorded at THS, a site near Modbury Heights in South Australia.

2 mag 4 aftershocks are clearly visible on the above seismogram.

Everyone in our 'network' recorded the last North Korean nuclear blast on their instruments.

We also deploy portable seismic recording instruments in temporary installations in regions where seismic activity occurs and all of our data goes into the Australian data bases.

 

SAA's Chief Seismologist David Love and Chairman Blair Lade deploying a portable solar powered instrument at Yongala SA during a seismic 'swarm' in September 2011. About 200 seismic events were recorded and analysed to produce 'focal mechanisms' from this swarm. Some of the locals we spoke to during the deployment said she could feel the larger events and could hear lots more.

Data from our instruments goes to several places, Melbourne Universiity has a server where the data is stored, data is also sent to a server in Western Australia at the Australian Centre for Geomechanics and screen shots of the last 24 hours from a lot of our sites goes to Sydney to the Regional Seismic Users web site.

Downloads

'Flyer' about the Seismological Association of Australia

Membership Application form

 

Science Alive 2018

Our Booth at Science Alive 2018 , Adelaide South Australia

Newsletters of the SAA

Newsletter #1

Newsletter #2

Newsletter #3

Newsletter #4

Newsletter #5

Newsletter #6

Newsletter #7

Seismic Links

GeoScience Australia

Regional Seismic Users 

IRIS Seismic Monitor

Atlas of the Underworld

Flinders Ranges Earthquake Hypocentres, Download the 10Mb file, save it to your PC, open it, enable 3D, click 'Transparent' on DTM and have a look around!

Adelaide earthquake 1954

Alan Jones earthquake related software, Amaseis, Seismic Eruptions, Seismic Waves, Eq Locate, Jamaseis (monitor stations around the world on your PC 'Live')

Current Seismicity from the Melbourne EQserver (latest hour)

Melbourne EQserver where you can 'look around the network', search past dates and events.

Latest South Australian earthquakes

Locations of recent SA Earthquakes Determinations of local South Australian seismic events, (requires FireFox or Google Chrome)

Carey Gully M1.0 29-07-2018

Myponga M2.2 27-07-2018

Cleve M3.7 01-07-2018

Palmer M2.8 08-08-2018

 

Downloadable worksheets for students 

Earthquake worksheet #1

Earthquake worksheet #2