Earthquake with magnitude of ML 0.3 on date 08-05-2022 and time 21:29:08 (UTC) in region 6 km W Figline e Incisa Valdarno (FI)

A magnitude ML 0.3 earthquake occured in region: 6 km W Figline e Incisa Valdarno (FI), on

  • 08-05-2022 21:29:08 (UTC)
  • 08-05-2022 23:29:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6550, 11.3840 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Figline e Incisa Valdarno FI 6 23505 23505
Greve in Chianti FI 9 13862 37367
Rignano sull'Arno FI 10 8651 46018
Impruneta FI 11 14615 60633
Bagno a Ripoli FI 12 25611 86244
Reggello FI 13 16290 102534
Castelfranco Piandiscò AR 14 9632 112166
Pontassieve FI 14 20603 132769
San Giovanni Valdarno AR 15 17018 149787
San Casciano in Val di Pesa FI 16 17062 166849
Pelago FI 16 7660 174509
Firenze FI 16 382808 557317
Cavriglia AR 17 9614 566931
Fiesole FI 19 13969 580900
Radda in Chianti SI 19 1613 582513
Tavarnelle Val di Pesa FI 20 7800 590313
Scandicci FI 20 50609 640922
Terranuova Bracciolini AR 20 12346 653268

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Firenze (382808 inhabitants)
20 Km SE of Scandicci (50609 inhabitants)
34 Km SE of Prato (191150 inhabitants)
38 Km N of Siena (53903 inhabitants)
45 Km W of Arezzo (99543 inhabitants)
49 Km SE of Pistoia (90315 inhabitants)
74 Km E of Lucca (89046 inhabitants)
79 Km E of Pisa (89158 inhabitants)
81 Km SW of Faenza (58541 inhabitants)
82 Km SW of Imola (69797 inhabitants)
82 Km SW of Forlì (117913 inhabitants)
87 Km E of Livorno (159219 inhabitants)
87 Km SW of Cesena (96758 inhabitants)
94 Km S of Bologna (386663 inhabitants)
94 Km E of Viareggio (62467 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.3 2022-05-08
21:29:08
43.6548 11.3835 10 2022-05-08
21:40:24
Sala Sismica INGV-Roma 104363771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-08 21:29:08 ± 0.25
Latitude 43.6548 ± 0.0162
Longitude 11.3835 ± 0.0534
Depth (km) 10 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104363771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4363
Semi-minor axis of confidence ellipse (meter) 1441
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 4360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53330
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 104363771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-08 21:40:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
HL.VLS.HHZ. 2022-05-08T21:30:59.79 3.0 positive manual Pn -3 0
OT.OT14.EHZ. 2022-05-08T21:30:45.01 3.0 undecidable manual Sg 12.63 0
IV.PAOL.HHZ. 2022-05-08T21:30:32.30 3.0 undecidable manual Sn 2.04 0
1J.FX14.HHZ.00 2022-05-08T21:30:30.99 3.0 undecidable manual Pn -4.08 0
GU.CANO.HHZ. 2022-05-08T21:30:23.31 3.0 undecidable manual Sn -0.24 0
IV.MCRV.HHZ. 2022-05-08T21:30:11.98 3.0 undecidable manual Pg 14.76 0
IV.CDRU.HHZ. 2022-05-08T21:30:00.43 3.0 undecidable manual Pn -0.89 0
IV.PAOL.HHZ. 2022-05-08T21:29:58.09 3.0 negative manual Pg 7.23 0
GU.CANO.HHZ. 2022-05-08T21:29:50.39 3.0 negative manual Pn 3.3 0
IV.BOSL.HHN. 2022-05-08T21:29:20.43 1.0 undecidable manual S 359 0.2761 50 0.82 23
IV.MC2.EHZ. 2022-05-08T21:29:20.12 3.0 negative manual P -1.52 0
IV.CAFI.HNN. 2022-05-08T21:29:19.62 0.1 undecidable manual P 127 0.5333 50 0.2 96
IV.RUFI.EHZ. 2022-05-08T21:29:18.14 0.3 undecidable manual S 26 0.2041 114 0.82 49
IV.ZCCA.HHZ. 2022-05-08T21:29:18.34 3.0 undecidable manual P -4.04 0
IV.OSSC.HHZ. 2022-05-08T21:29:16.16 0.3 undecidable manual S 217 0.1646 119 0.2 77
IV.CSNT.HHZ. 2022-05-08T21:29:16.51 0.3 undecidable manual S 200 0.1943 115 -0.45 74
IV.BOSL.HHN. 2022-05-08T21:29:14.57 0.1 undecidable manual P 359 0.2761 50 -0.44 88
IV.RUFI.EHZ. 2022-05-08T21:29:13.03 0.3 undecidable manual P 26 0.2041 114 -0.66 72
IV.OSSC.HHZ. 2022-05-08T21:29:13.22 0.1 undecidable manual P 217 0.1646 119 0.32 100
IV.CSNT.HHZ. 2022-05-08T21:29:13.13 0.1 undecidable manual P 200 0.1943 115 -0.34 99
IV.LMD.HHZ. 2022-05-08T21:29:10.77 3.0 positive manual P -1.09 0
IV.ATMI.HHZ. 2022-05-08T21:29:08.82 3.0 negative manual P 0.67 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RUFI.EHE. ML:0.4 0.000017098824999999998 1.152 AML other m 2022-05-08T21:29:18.31
IV.RUFI.EHN. ML:0.2 0.000011737783 0.4992 AML other m 2022-05-08T21:29:21.34
IV.CSNT.HHE. ML:0.0 0.000001742431 0.2688 AML other m 2022-05-08T21:29:16.53
IV.CSNT.HHN. ML:0.0 0.0000020779825 0.4992 AML other m 2022-05-08T21:29:16.86
IV.OSSC.HHE. ML:0.0 0.0000024093819999999997 0.9088 AML other m 2022-05-08T21:29:17.01
IV.OSSC.HHN. ML:0.0 0.0000012351375000000001 0.1792 AML other m 2022-05-08T21:29:16.40
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download