At 9 AM on a Saturday, hundreds of runners gather to Leicester Victoria Park for #parkrun. The start kicks off a seismic swarm of runners, releasing energy with every step. This creates a peak in ground displacement in our seismometers every Saturday morning. #SeismicSaturdays

Between May 2022 and Dec 2023, 35 of our seismometers were deployed across Zambia as part of the CuBES project. Utilising shear-wave splitting, researchers were able to constrain lithospheric features from the Precambrian to Phanerozoic across the region. #SeismicSaturdays

A seismic section showing the #earthquake's travel time across the Earth is shown below, with the earthquake's location and the presented seismometers plotted on the map. This was a significant earthquake, with seismometers on the other side of the globe detecting seismic motion.

A M7.5 #earthquake occurred within the Drake Passage (between South America and Antarctica) at 02:16:19 (UTC), detect on my @raspishake.bsky.social seismometer in Leicester, UK. The earthquake was a strike slip earthquake, meaning a tsunami is highly unlikely.

Large earthquakes are followed by many smaller earthquakes nearby, called aftershocks. The rate of aftershocks decreases with time. After a significant quake the USGS releases an aftershock forecast. Below is the aftershock forecast for the M8.8 earthquake off the coast of Russia. 1/ 🧪

Last night at 23:24:50 (UTC time), a M8.8 #earthquake rocked the Kamchatka Peninsula in eastern Russia. The event was detected by seismometers in our test bays, taking only 12 minutes to arrive. This event was the largest since the 2011 M9.1 earthquake in NE Japan.

Part of Northern California (from the CA/OR border to Cape Mendicino) is now under a Tsunami Warning. The rest of California remains under a Tsunami Advisory. www.tsunami.gov

At 23:24:50 (UTC time), a M8.8 #earthquake struck eastern Russia causing a tsunami that is crossing the Pacific. The event was detected on my @raspishake.bsky.social seismometer in Leicester, UK. The #earthquake is the largest since the M9.1 earthquake that struck NE Japan in 2011.

In 2010, an increase in seismic activity at the Northern Volcanic Zone in Iceland led to a deployment of our seismometers. The seismicity was located in the mid/lower crust, which was attributed to the flow of dyke intrusions as they moved through the Earth. #SeismicSaturdays

Last year saw the return of Kasabian to Victoria Park, Leicester for their Summer Solstice II tour. During the gig, our seismometers picked up the movement of the band and crowd, distinguishing the songs in the set list by their BPM. #SeismicSaturdays

@seis-uk.bsky.social has had seismic equipment on every continent through our work with the wider geophysics community. We supply equipment, software, training and expertise to ensure that world leading research can be conducted.

First successful bat detection on my #πpistrelle bat detector in Leicester UK. I believe (and I'm no expert) that the descending frequency from a high of 100 kHz to a long trail at 50 kHz is the chirp of a #pipistrelle, probably a common one. 🦇🦇🦇 #bat

M6.2 strike-slip #earthquake occurred near the island of Crete in Greece at 03:19:35 (UTC), detected on my @raspishake.bsky.social seismometer. No major damage has been reported in the region. Rare for this station, both the P and S wave arrivals can be seen in the unfiltered waveform.

M6.4 #earthquake occurred at 04:15:38 (UTC) beneath the Tonga Island Region in the SW Pacific. This was detected on the @raspishake.bsky.social seismic network. The focus point (hypocenter) of this earthquake was deep at 243 km depth, which is not uncommon for the region.

M7.4 #earthquake at the southern tip of Argentina in the Drake Passage, detected on my @raspishake.bsky.social seismometer. A tsunami threat was reported, but has since been downgraded. For some perspective, if the latitude was flipped, the location would be on the same latitude as Scotland.

Large earthquakes can be detected around the world. This animation from @earthscope.org uses real seismic data to show the seismic waves from the M7.1 Tonga earthquake as they were detected by seismometers across North America.

M7.0 #earthquake occurred at 2025-03-30 12:18:47 (UTC) in the Tonga Island Region, detected on my @raspishake.bsky.social seismometer in Leicester, UK. An initial tsunami warning was declared, but it has since been dropped.

Significant damage has now been reported in Mandalay (Myanmar), with several building collapsed, with the #earthquake felt for a "long time" according to residents in the region. www.bbc.co.uk/news/live/c4...

M7.7 #earthquake occurred at 2025-03-28 06:20:54 (UTC) near the city of Mandalay in Myanmar, detected on my @raspishake.bsky.social. Reports of buckled roads in Myanmar, and 1000 km away in Bangkok (Thailand), a high rise building under construction has collapsed, with 40+ workers missing.

M6.5 #earthquake north of Iceland in the Jan Mayen Island region occurred this morning at 02:33:14 (UTC), detected on my @raspishake.bsky.social seismometer. The relatively close proximity of this earthquake to the UK means the seismic waves can be seen on an unfiltered waveform.

M7.6 #earthquake struck North of Honduras in the Caribbean. No tsunami warning or advisory is in place for the region. The earthquake can be seen on seismometers around the world. This image shows seismometers on the @raspishake.bsky.social citizen science seismic network.

A M6.8 #earthquake occurred at 12:19:32 (UTC) off the coast of Miyazaki, Japan. The earthquake was detected on the @raspishake network and can be seen around the world. The figure shows the earthquake arrivals and their phases at different stations on the @raspishake network.

A M6.2 #earthquake occurred at 08:32:55 (UTC) beneath the west coast of Mexico. The earthquake was detected on the @raspishake network and can be seen around the world. The figure shows the earthquake arrivals and their phases at different stations on the @raspishake network.

A M7.1 earthquake just occurred in the Tibetan plateau, NE of Nepal. A normal-mechanism event - accommodating east-west extension of the plateau. A significant event, but hopefully impacts will be mitigated by the remoteness of the location. earthquake.usgs.gov/earthquakes/...

The magnitude 7.1 earthquake in China was large enough to be detected by seismic sensors around the world. This video shows some of those recordings. 🧪 ⚒️ Full video - youtube.com/shorts/Xko9i...

A shallow M7.1 #earthquake occurred at 01:05:16 (UTC) near the China/Nepal border. This earthquake has sadly resulted in >90 fatalities and >130 injuries in the region. The figure below shows the seismic signals arriving at raspishake seismometers around the world.

An earthquake occurred in the Scottish Highlands at the south west section of the Great Glen Fault. Detected on a local raspishake seismometer.

Quake it off: The 7 June 2024 was 'The Best Day' for Swiftie seismologists following Taylor Swift's Seismic Edinburgh concerts - which resulted in earthquake readings up to 6 km from the venue! bgs.ac.uk/news/quake-i...

M6.8 #earthquake beneath the Kuril Islands occurred at 2024-12-27 12:47:37 (UTC). 1st Image: Seismic signals detected on my raspishake seismometer in Leicester, UK. 2nd Image: Seismic signals at multiple seismometers around the world, overlaid onto predicted arrival times, with location map.

Earthquake in Vanuatu kills 14 people. www.independent.co.uk/news/world/a...

M2.2 #Earthquake in Gotham Nottinghamshire, recorded on the #RaspberryShake #CitizenScience seismic network. See what's shaking near you with the #RaspberryShake #ShakeNet mobile app.

M7.3 #earthquake in the Vanuatu Islands occurred at 2024-12-17 01:47:26 (UTC). The earthquake was detected on my raspishake seismometer in Leicester, UK. The earthquake shows a clear arrival in the unfiltered waveform (top/grey) due to the quiet time of night when it arrived.

🚨Another job alert!🚨 Lectureship in mining/ geoenvironmental engineering at the Department of Earth and Environmental Sciences (Camborne School of Mines). Come do cool science with us on our beautiful Cornwall campus 😊 🧪⚒️🌍 www.jobs.ac.uk/job/DLC667/l...

A M6.3 and M6.1 #earthquake occurred last night at 2024-12-09 00:15:31 and 00:38:53 (UTC) at the Aleutian Trench (the trench that connects Alaska, USA to Kamchatka, Russia). Both earthquakes can be seen in the middle waveform and form part of a larger earthquake swarm happening in the region.

Lots of earthquake activity in Alaska today (SW of Adak) with five earthquakes above M5 since 11 am local time. How common are earthquakes in Alaska? 1/ 🧪⚒️ drupal10-175571281.us-west-2.elb.amazonaws.com

Seismologists xkcd.com/3021

Here is the seismic section* for the M7.0 #earthquake in California from a number of raspishake seismometers around the world. It's an early attempt and needs some improvements, but thought I'd share. (*x-axis: distance from the earthquake to the station; y axis: time since earthquake origin;)

M7.0 #earthquake off the coast of California at 2024-12-05 18:44:19, detected on my raspishake seismometer in Leicester. A tsunami warning has been put into place for the region, with some businesses closing due to the potential risk.

M6.1 #earthquake off the west coast of Japan yesterday at 2024-11-26 13:47:03 (UTC), detected on my raspishake seismometer. The signal is easily seen in the quieter 1.0-2.0 Hz freq. bands (middle blue seismogram). No immediate damage or tsunami warning were reported following the earthquake.