Jordi Diaz

Following the magnitude 8.8 Kamchatka earthquake, the Earth's normal modes are visible on broadband seismometers around the world, as here at the San Pablo (PAB) station in central Spain. The lowest mode, 0S2, shows that the Earth deforms every 52 minutes @geo3bcn-csic.bsky.social

Broad-band seismometers of the EPYSIM project in NE Spain have recorded the passage of surface seismic waves orbiting the Earth. At least five passages have been identified in each sense, meaning that seismic waves are still detected after traveling more than 200,000 km. @geo3bcn-csic.bsky.social

After a major earthquake, surface seismic waves orbit the planet Earth. Their passage can be recorded by broadband seismometers, such as this station from the @geo3bcn-csic.bsky.social EPYSIM project

Comparing the amplitudes of the mag 8.8 and mag 7.4 Kamchatka earthquakes at a @GEO3BCN_CSIC broad-band seismic station located in NE Spain. Amplitudes for today's earthquake are almost 6 times larger.

... and here the Kamchatka earthquake recorded by the #EPYSIM broad-band seismic network, deployed by
@geo3bcn-csic.bsky.social in NE Spain, 9300 km away from the epicenter

Les ones sismiques del terratrèmol mag 8.8 a la peninsula de Kamchatka, enregistrades pels sismòmetres @raspberryshake de la Xarxa Sismica Educativa del @geo3bcn-csic.bsky.social

Seismic waves from the 3 Kamchatka mag 8.8 earthquake recorded by the @geo3bcn-csic.bsky.social SEP seismometer in Barcelona, after travelling more than 9300 km

The vibrations generated by Billie Eilish's concerts in Barcelona, ​​​​recorded by a sensor located 700 m away. Similar recordings, but with greater movement during the middle part on Saturday the 14th. Data acquired by @icgcat.bsky.social
and processed at @geo3bcn-csic.bsky.social

El gol del Barça que va fer tremolar la Terra El sismòmetre de l'institut de Geociències Barcelona del CSIC va detectar el sisè gol del Barça contra el París Saint-Germain el 8 de març del 2017.

beteve.cat/va-passar-aq...

Segons el IGN, falla inversa

Series of earthquakes in the Gulf of Leon, recorded by one of the seismic stations of the EPYSIM project. At least 3 earthquakes of decreasing magnitude in just over 2 minutes
@geo3bcn-csic.bsky.social

Seismic waves of 6.2 m magnitude in northern Crete reaching the raspberryshake stations of the @geo3bcn-csic.bsky.social Educational Seismic Network, installed in institutes in NE Spain.

A detail of the celebrations after two of the @FCBarcelona's goals during the #CLASSIC, as recorded on the MTJR accelerometer @ICGCat. Data processed at @GEO3BCN_CSIC

Celebrations after @FCBarcelona's goals during the #CLASSIC, as recorded on the MTJR accelerometer @ICGCat. Data processed at @GEO3BCN_CSIC

The GEO3BCN-CSIC seismometer detected the blackout in Barcelona on April 28, 2025. When the metro and tram stopped operating, the seismic amplitude in the 30-40 Hz band decreased significantly.

El terratrèmol d'aquest matí prop de Istambul (mag 6.2), enregistrat a la Xarxa Sísmica Educativa del @geo3bcn-csic.bsky.social

Lamine Yamal scores FC Barcelona's 4-0 lead, and the earth shakes! Seismic data acquired at a seismic station of the @icgcat.bsky.social network, located 500 meters from the stadium. Data processed at @geo3bcn-csic.bsky.social

This work was funded by: Spanish Ministry of Science and Innovation (EPYSIM Project, Ref.: PID2022-136981NB-I00)

Earth's subtle vibrations 🌍!!!
Diaz et al. analyze the origin and time variations of background vibrations recorded at permanent seismic networks; an insight on oceanic, atmospheric and human activity.

Read now: doi.org/10.26443/sei...
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@jdiazcusi.bsky.social @geo3bcn-csic.bsky.social

Myanmar mag 7.7 earthquake recorded by the @GEO3BCN_CSIC seismometer located within the city of Barcelona, 8700 km away from the epicenter

Seismic waves from the m 7.7 Myanmar earthquake, recorded at the EPYSIm broad-band network in NE Spain @geo3bcn-csic.bsky.social

El terratrèmol de magnitud 7.7 a Myanmar, enregistrat a les estacions de la Xarxa Sismica Educativa del @geo3bcn-csic.bsky.social , despres de viatjar 8700 km.

Seismic monitoring of urban activity in Barcelona during the COVID-19 lockdown Abstract. During the COVID-19 pandemic lockdown, the city of Barcelona was covered by a dense seismic network consisting of up to 19 seismic sensors. This network has provided an excellent tool to inv...

ive years ago in Barcelona (and everywhere....)
se.copernicus.org/articles/12/...

Terratrèmol (mag 2.9) devant les costes del Garraf, enregistrat per les estacions de la Xarxa Sismica Educativa del @geo3bcn-csic.bsky.social

Ahir, al Palau Sant Jordi, més de 9000 infants van ballar amb Dansa Ara. Un sismòmetre del @icgcat.bsky.social
situat al uns 700 m va enregistrar el moviment generat per l'actuació de l'alumnat durant dels dos torns. Dades sismiques processades al @geo3bcn-csic.bsky.social @bcnesports.bsky.social

Terratrèmol de magnitud 6.5 a la dorsal atlàntica, al nord d'Islàndia, enregistrat a la Xarxa Sismica Educativa del @geo3bcn-csic.bsky.social després de viatjar 3500 km

Les sardanes també poden fer tremolar el terra. Registre sísmic al accelerometre BAJU del ICGC d'una ballada al Portal de l'Àngel de Barcelona

One month later, the seismic crisis in Santorini seems to be coming to an end

(Epicentral locations recovered from SeismicPortal and processed at GEO3BCN-CSIC)

Update on the seismic crisis in Santorini. Epicentral locations recovered from SeismicPortal and processed at GEO3BCN-CSIC

www.3cat.cat/3cat/terratr...

Two of tonight's Santorini earthquakes, recorded 2000 km away by seismological stations of the GEO3BCN-CSIC @geo3bcn-csic.bsky.social Educational Seismic Network in NE Spain.