It’s #earthscienceweek so I thought I’d go into a bit more detail on how educators can use to our Quick Quake tool to demonstrate how @earthquakes.au seismologists quickly calculate the location and magnitude of an earthquake. It works on macOS machines with Apple Silicon too.

Is 200 earthquakes in just over a month normal for southeast Australia? It is, if your seismic network is dense enough and you’re dedicated to detailed data analysis. Staff at the Seismology Research Centre have manually located more than 35000 earthquakes over the last 50 years.

What’s a funny or clever collective noun for your (or any other) occupation? Make one up in the comments, or like the one in there that you think is the best so far.

#earthquake #gympie #queensland #brisbane

#earthquake #gympie #queensland #brisbane

The wiggly lines of a seismogram can sometimes hide small but important signals at other frequencies. This is why we also look at spectrograms!
Interesting recent recordings include #kangaroos #rockfalls #sonicbooms from meteors & rockets, and crowds at #football #travisscott & #taylorswift concerts

Let's see is we can find this non-earthquake on our seismographs! Last week we detected the NSW rockfall, and last night a meteor shook houses in central Victoria.
www.abc.net.au/news/2025-08...

This is why we use 3D sensors in earthquake data analysis. I selected a seismogram that highlights how the vertical channel has a clearer P-wave onset. The S-wave arrival on this channel is really unclear compared to the horizontals. Low-frequency high-energy S-waves are often the destructive phases