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Jordi Diaz

@jdiazcusi.bsky.social

160 followers 150 following 46 posts

Seismologist at GEO3BCN-CSIC, Barcelona

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Jordi Diaz @jdiazcusi.bsky.social · Aug 28

On August 10, a massive landslide in Tracy Arm Fjord, Alaska, resulted in ground shaking recorded by seismic instruments around the world, as these in Spain, located at distances of 8,000 km aprox. Weak P waves arrive around 13:38 UTC, followed by S waves and surface waves.

Jordi Diaz @jdiazcusi.bsky.social · Aug 26

theconversation.com/la-tierra-se...

La Tierra se “hincha” y “deshincha” cada 20 minutos a consecuencia del terremoto de Kamchatka

Los efectos de las ondas generadas por el terremoto de Kamchatka, en Rusia, han sido detectadas en los sismógrafos de Toledo (España), más de 20 días después del seísmo.

theconversation.com

Jordi Diaz @jdiazcusi.bsky.social · Aug 5

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

Jordi Diaz @jdiazcusi.bsky.social · Jul 31

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

Jordi Diaz @jdiazcusi.bsky.social · Jul 30

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

Jordi Diaz @jdiazcusi.bsky.social · Jul 30

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.

Jordi Diaz @jdiazcusi.bsky.social · Jul 30

... 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

Jordi Diaz @jdiazcusi.bsky.social · Jul 30

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

Jordi Diaz @jdiazcusi.bsky.social · Jul 30

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

Jordi Diaz @jdiazcusi.bsky.social · Jun 16

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

Jordi Diaz @jdiazcusi.bsky.social · Jun 12

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

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.

Jordi Diaz @jdiazcusi.bsky.social · May 30

Segons el IGN, falla inversa

Jordi Diaz @jdiazcusi.bsky.social · May 30

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

Jordi Diaz @jdiazcusi.bsky.social · May 22

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.

Jordi Diaz @jdiazcusi.bsky.social · May 12

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

Jordi Diaz @jdiazcusi.bsky.social · May 12

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

Jordi Diaz @jdiazcusi.bsky.social · May 5

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.

Jordi Diaz @jdiazcusi.bsky.social · Apr 23

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

Jordi Diaz @jdiazcusi.bsky.social · Apr 10

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

Reposted by Jordi Diaz

Seismica @weareseismica.bsky.social · Apr 9

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

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

Jordi Diaz @jdiazcusi.bsky.social · Mar 28

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

Jordi Diaz @jdiazcusi.bsky.social · Mar 28

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

Jordi Diaz @jdiazcusi.bsky.social · Mar 28

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.

Jordi Diaz @jdiazcusi.bsky.social · Mar 14

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

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...

se.copernicus.org

Jordi Diaz @jdiazcusi.bsky.social · Mar 13

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