III
- M4.7 - M4.7 earthquake central Italy

 

On October 6, 2025, a magnitude 4.7 earthquake struck central Italy, triggering a massive activation of seismic stations in the surrounding area. One of our citizen radio stations also detected it.

 

M4.7 earthquake central Italy
Reading time: Less than a minute

Despite being a minor earthquake, our citizen EQ002 seismic station detected it with its 4.5Hz geophone at 200 V/m/s, at a distance of more than 800km.

The seismogram accompanying this article shows the two arrival times of the P and S waves, along with the spectrogram.

Earthquake data:

 

Date and time of origin: 2025-10-06 10:13:59 UTC
Date and time of arrival at the Citizen seismic station: 2025-10-06 10:16:10 UTC
Location where the station is located: Germans Sàbat, Girona, ES (EU)
Time difference from the event to arrival at the station: 2 minutes and 11 seconds
Distance from the epicenter to the station: 882,93 Km
Wave speed: 6,74 km/s => 6.739,94 m/s
Wave type (according to speed): P
Sensor type: Geophone 4.5Hz - 200 V/m/s
Sampling frequency (sps): 100Hz
Alarms: frequencies activated upon arrival of the wave:
* By order of detection		 1.5-4.5Hz, 3-8Hz, 0.5-2.5Hz, 0.7-2Hz, 1-5Hz, 20-30Hz, 0.5-1Hz, 0.1-1Hz, 0.05-0.9Hz, 0.1-0.8Hz
Place of Origin: Central Italy, 62 km E of Rimini. 33 km ENE of Pesaro
Geodetic coordinates of the epicenter:  📍 43.9600°N 13.3280°E
Depth (hypocenter): 10.0 km
Magnitude Richter Scale: M4.7
Modified Mercalli Scale Magnitude MMI => DYFI (Did You Feel It):
III
* MMI estimated
URL Official Data EMSC:  https://static1.emsc.eu/Earthquake_data/data.php?s...
URL Official Data IRIS:  https://geoserver.iris.edu/node/566659
Unofficial data URL Volcano Discovery:  https://www.volcanodiscovery.com/earthquake/news/2...

 

 

- GlobalQuake visualization software





Other related blog posts: