September 18, 2023, 05:10:00: Earthquake in 4 km SW Marradi (FI)

Earthquakes with magnitude 4.9 felt at 05:10:00 on September 18, 2023.
Place: 4 km SW Marradi (FI).

Earthquake in Toscana. Earthquake in the province of Firenze.

On Monday 18 September 2023 at 05:10:00 an earthquake of magnitude 4.9 and depth 8.1 km was recorded in 4 km SW Marradi (FI). Further info on the INGV webpage by clicking here.

Based on the depth of the hypocenter, earthquakes are classified into superficial (hypocenter between 0 e 70 and deep), intermediate (Hypocenter between 70 and 300 km deep) and deep (hypocenter between 300 and 720 km deep). The earthquake occurred at 05:10:00 on September 18, 2023, with epicenter 4 km SW Marradi (FI), having a depth of 8.1 km is therefore classified as superficial.

Being of magnitude 4.9, therefore between 4 and 5, this earthquake is classified as "light". This type of earthquake generates noticeable oscillations for interior items, but structural damage to buildings is rare.

Credits: data from INGV, Istituto Nazionale di Geofisica e Vulcanologia, ingv.it

For continuous updates on the latest earthquakes felt, even those felt a few minutes ago, click on the link.
See also the historical archive with the strongest earthquakes recorded from the year 1000 to 2020.

Epicenter map of the earthquake occurred on 18 September 2023, at 05:10:00. Magnitude = 4.9.

Seismicity in the 3 days preceding the event

Seismicity in the 3 days preceding the event
Epicenters of earthquakes in the 72 hours preceding the seismic event which occurred at 05:10:00 on 18 September 2023. Place: 4 km SW Marradi (FI). Magnitude: 4.9. Credits: terremoti.ingv.it

Seismicity in the 90 days preceding the event (M≥2)

Seismicity in the 90 days preceding the event (M≥2)
Epicenters of earthquakes with magnitude ≥2 in the 90 days preceding the seismic event which occurred at 05:10:00 on 18 September 2023. Place: 4 km SW Marradi (FI). Magnitude: 4.9. Credits: terremoti.ingv.it

Seismicity from 1985 (M≥3)

Seismicity from 1985 (M≥3)
Epicenters of earthquakes with magnitude ≥3 from 1985 to 18 September 2023. Credits: terremoti.ingv.it

Seismicity from 1000

Seismicity from 1000
Epicenters of earthquakes since 1000 AD. Credits: terremoti.ingv.it

Intensity Shakemap

Intensity Shakemap
Distribution of instrumental intensities. Credits: terremoti.ingv.it

Peak ground acceleration

Peak ground acceleration
Distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s2). Credits: terremoti.ingv.it

Peak velocity Shakemap

Peak velocity Shakemap
This map shows the distribution of peak ground velocities expressed in cm/s. Credits: terremoti.ingv.it