Seismology Research Centre
@earthquakes.au
Earthquake Observatory in Melbourne, Australia, monitoring events in the southeastern states. Seismograph manufacturer.
Media contact: @SeisLOLogist
Media contact: @SeisLOLogist
Three offshore magnitude 3+ earthquakes occurred in the region last week:
🟠On 24 Nov a magnitude 3.2 quake struck off West Point in northwest TAS
🟠On the 29th an M3.5 occurred off the NSW south coast, 35km east of Bermagui
🟠On the 30th an M3.3 occurred 10km offshore, ~60km north of Launceston TAS
🟠On 24 Nov a magnitude 3.2 quake struck off West Point in northwest TAS
🟠On the 29th an M3.5 occurred off the NSW south coast, 35km east of Bermagui
🟠On the 30th an M3.3 occurred 10km offshore, ~60km north of Launceston TAS
December 1, 2025 at 6:22 AM
Three offshore magnitude 3+ earthquakes occurred in the region last week:
🟠On 24 Nov a magnitude 3.2 quake struck off West Point in northwest TAS
🟠On the 29th an M3.5 occurred off the NSW south coast, 35km east of Bermagui
🟠On the 30th an M3.3 occurred 10km offshore, ~60km north of Launceston TAS
🟠On 24 Nov a magnitude 3.2 quake struck off West Point in northwest TAS
🟠On the 29th an M3.5 occurred off the NSW south coast, 35km east of Bermagui
🟠On the 30th an M3.3 occurred 10km offshore, ~60km north of Launceston TAS
Limited stock and sizes remain, so get in quick if you want a MegaQuake t-shirt. Free shipping deal is on between now and 18 December, so get in early if you want one to arrive in time to put under your tree these holidays.
November 27, 2025 at 2:32 AM
Limited stock and sizes remain, so get in quick if you want a MegaQuake t-shirt. Free shipping deal is on between now and 18 December, so get in early if you want one to arrive in time to put under your tree these holidays.
The two largest earthquakes last week were a magnitude 2.3 near Broken Hill, and a 2.0 near Cadia NSW.
To those commenting that we are being dramatic by calling these "earthquakes": this is the only precise term. They just vary in energy. Tremor or shake are unofficial terms used help orient readers
To those commenting that we are being dramatic by calling these "earthquakes": this is the only precise term. They just vary in energy. Tremor or shake are unofficial terms used help orient readers
November 25, 2025 at 2:27 AM
The two largest earthquakes last week were a magnitude 2.3 near Broken Hill, and a 2.0 near Cadia NSW.
To those commenting that we are being dramatic by calling these "earthquakes": this is the only precise term. They just vary in energy. Tremor or shake are unofficial terms used help orient readers
To those commenting that we are being dramatic by calling these "earthquakes": this is the only precise term. They just vary in energy. Tremor or shake are unofficial terms used help orient readers
In the last week we have detected 37 earthquakes in the map region, which is about average. The largest was just off the Tasmanian south coast at magnitude 2.9, followed by two near Cadia NSW (2.4 & 2.3), two in South Australia (2.3 off Seaford, 2.2 Flinders Ranges), and a 2.0 near Tynong VIC.
November 17, 2025 at 5:17 AM
In the last week we have detected 37 earthquakes in the map region, which is about average. The largest was just off the Tasmanian south coast at magnitude 2.9, followed by two near Cadia NSW (2.4 & 2.3), two in South Australia (2.3 off Seaford, 2.2 Flinders Ranges), and a 2.0 near Tynong VIC.
Reposted by Seismology Research Centre
AC/DC played Melbourne again on Sunday night. There was a 12% higher peak in ground-pounding tunes compared to last Wednesday. The frequency "heat map" pattern was similar in timing and relative intensity, but slightly clearer this time. 🤘
November 17, 2025 at 3:26 AM
AC/DC played Melbourne again on Sunday night. There was a 12% higher peak in ground-pounding tunes compared to last Wednesday. The frequency "heat map" pattern was similar in timing and relative intensity, but slightly clearer this time. 🤘
Here's the last two weeks of earthquakes in southeast Australia. The largest was a magnitude 2.7 near Broken Hill NSW.
If you hadn't noticed them before, the grey dots in the background of our maps show historical epicentre locations, mostly from the last 60 years, but some from as far back as 1788!
If you hadn't noticed them before, the grey dots in the background of our maps show historical epicentre locations, mostly from the last 60 years, but some from as far back as 1788!
November 10, 2025 at 5:34 AM
Here's the last two weeks of earthquakes in southeast Australia. The largest was a magnitude 2.7 near Broken Hill NSW.
If you hadn't noticed them before, the grey dots in the background of our maps show historical epicentre locations, mostly from the last 60 years, but some from as far back as 1788!
If you hadn't noticed them before, the grey dots in the background of our maps show historical epicentre locations, mostly from the last 60 years, but some from as far back as 1788!
We recorded two non-earthquakes in the last 24 hours. The first was on our office seismograph, detecting Oasis fans 5.5km away at Marvel Stadium. The second was picked up by our station in eastern Victoria - likely a sonic boom from a meteor. The sound was reported widely in the region.
November 2, 2025 at 10:04 AM
We recorded two non-earthquakes in the last 24 hours. The first was on our office seismograph, detecting Oasis fans 5.5km away at Marvel Stadium. The second was picked up by our station in eastern Victoria - likely a sonic boom from a meteor. The sound was reported widely in the region.
A magnitude 2.5 earthquake northwest of Armidale NSW was the largest of 35 events last week, followed by a 2.2 off Kangaroo Island SA. There’s also a 2.0 amongst the four earthquakes that occurred within a 15 minute period near Bonnie Doon VIC early this morning.
October 27, 2025 at 8:34 AM
A magnitude 2.5 earthquake northwest of Armidale NSW was the largest of 35 events last week, followed by a 2.2 off Kangaroo Island SA. There’s also a 2.0 amongst the four earthquakes that occurred within a 15 minute period near Bonnie Doon VIC early this morning.
A light scattering of earthquakes across the states, with the largest last week only magnitude 2.3 near Adaminaby NSW, just south of the Australian Capital Territory.
October 20, 2025 at 9:44 AM
A light scattering of earthquakes across the states, with the largest last week only magnitude 2.3 near Adaminaby NSW, just south of the Australian Capital Territory.
Reposted by Seismology Research Centre
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.
October 11, 2025 at 8:52 PM
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.
Earthquakes for weeks 40 & 41 - only 50 events to report, which is a little less than average. Only one earthquake cracked the M2 barrier: a magnitude 2.1 on the 10th of October at 8:12pm local time at Dalton NSW, just north of Canberra. #earthscienceweek
October 14, 2025 at 3:43 AM
Earthquakes for weeks 40 & 41 - only 50 events to report, which is a little less than average. Only one earthquake cracked the M2 barrier: a magnitude 2.1 on the 10th of October at 8:12pm local time at Dalton NSW, just north of Canberra. #earthscienceweek
42 earthquakes were detected in southeast Australia between the 18th and 28th of September 2025. The magnitude 4.4 near Strathgordon in Tasmania was the largest onshore earthquake in the state in over 20 years, when an M4.5 occurred at Cradle Mountain in November 2004.
September 29, 2025 at 6:57 AM
42 earthquakes were detected in southeast Australia between the 18th and 28th of September 2025. The magnitude 4.4 near Strathgordon in Tasmania was the largest onshore earthquake in the state in over 20 years, when an M4.5 occurred at Cradle Mountain in November 2004.
Preliminary info: a magnitude 4.4 earthquake has occurred near Strathgordon in southwest Tasmania
September 24, 2025 at 8:45 PM
Preliminary info: a magnitude 4.4 earthquake has occurred near Strathgordon in southwest Tasmania
Here are the 83 earthquakes detected from 1-17 September. NSW decided to host the M3+ events this time: two magnitude 3.7 earthquakes occurred 370km apart but within hours of each other, one near Nyngan, the other near Muswellbrook. An M3.1 then occurred 5 hours later 135km east near Bulahdelah NSW.
September 18, 2025 at 5:56 AM
Here are the 83 earthquakes detected from 1-17 September. NSW decided to host the M3+ events this time: two magnitude 3.7 earthquakes occurred 370km apart but within hours of each other, one near Nyngan, the other near Muswellbrook. An M3.1 then occurred 5 hours later 135km east near Bulahdelah NSW.
Reposted by Seismology Research Centre
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.
September 16, 2025 at 10:58 AM
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.
It's been a while, but we're back with our earthquake map! Here are the 213 events we detected from July 21 to August 31. The two largest were on Kangaroo Island in South Australia: a magnitude 3.6, followed by an M3.2 two weeks later. The other magnitude 3.0 was on Melbourne's Mornington Peninsula.
September 12, 2025 at 6:04 AM
It's been a while, but we're back with our earthquake map! Here are the 213 events we detected from July 21 to August 31. The two largest were on Kangaroo Island in South Australia: a magnitude 3.6, followed by an M3.2 two weeks later. The other magnitude 3.0 was on Melbourne's Mornington Peninsula.
Did anyone in Sunbury feel this little earthquake just before 9pm?
September 3, 2025 at 11:11 AM
Did anyone in Sunbury feel this little earthquake just before 9pm?
A magnitude 3.0 earthquake occurred at 11:35am today on Kangaroo Island, South Australia. This follows a magnitude 3.6 that occurred on the island about 2 weeks ago.
August 27, 2025 at 1:42 AM
A magnitude 3.0 earthquake occurred at 11:35am today on Kangaroo Island, South Australia. This follows a magnitude 3.6 that occurred on the island about 2 weeks ago.
Reposted by Seismology Research Centre
August 16, 2025 at 12:18 AM
Preliminary info: magnitude 5.3 earthquake near Gympie in Queensland at 9:49am
August 15, 2025 at 11:59 PM
Preliminary info: magnitude 5.3 earthquake near Gympie in Queensland at 9:49am
A magnitude 2.9 earthquake occurred just off the east coast of Melbourne‘s Mornington Peninsula at 4:39am, near Flinders.
August 13, 2025 at 6:58 PM
A magnitude 2.9 earthquake occurred just off the east coast of Melbourne‘s Mornington Peninsula at 4:39am, near Flinders.
A magnitude 3.4 earthquake occurred on Kangaroo Island in South Australia at 1:32am today. Report what you felt at earthquakes.ga.gov.au/feltreport
August 12, 2025 at 3:51 PM
A magnitude 3.4 earthquake occurred on Kangaroo Island in South Australia at 1:32am today. Report what you felt at earthquakes.ga.gov.au/feltreport
Seismosphere is a cloud-hosted data visualisation and seismic network management tool that we designed to run our observatory, and we’re proud to be able to help other organisations share their data using this user friendly platform.
Some schools can get involved with Science Week by looking at their seismographs to see the magnitude 6.1 earthquake that occurred in West Papua an hour ago. There are about 50 schools across the country with an @auscope.bsky.social seismograph. Here's what they recorded, as seen on Seismosphere
August 12, 2025 at 10:03 AM
Seismosphere is a cloud-hosted data visualisation and seismic network management tool that we designed to run our observatory, and we’re proud to be able to help other organisations share their data using this user friendly platform.
Waves of Colour! There’s a new version of Waves coming that brings dark mode, amplitude based waveform colours, and 42 options for the spectrogram colour scheme. Waves is a free app anyone can use for waveform analysis and earthquake location and magnitude calculation. www.src.com.au/downloads/wa...
August 8, 2025 at 2:09 AM
Waves of Colour! There’s a new version of Waves coming that brings dark mode, amplitude based waveform colours, and 42 options for the spectrogram colour scheme. Waves is a free app anyone can use for waveform analysis and earthquake location and magnitude calculation. www.src.com.au/downloads/wa...
Reposted by Seismology Research Centre
A colleague noticed this Facebook post about a massive rockfall in the Blue Mountains, so I looked at the overnight records to see if it was visible. The closest station was 30km away, and a spike in the spectrogram at 3:05am had me check other nearby stations, which all rumbled for about a minute.
August 7, 2025 at 2:03 AM
A colleague noticed this Facebook post about a massive rockfall in the Blue Mountains, so I looked at the overnight records to see if it was visible. The closest station was 30km away, and a spike in the spectrogram at 3:05am had me check other nearby stations, which all rumbled for about a minute.