Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 09-05-2022 and time 06:40:35 (Italy) in region 4 km E San Casciano in Val di Pesa (FI)

A magnitude ML 1.3 earthquake occured in region: 4 km E San Casciano in Val di Pesa (FI), on

  • 09-05-2022 04:40:35 (UTC)
  • 09-05-2022 06:40:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6540, 11.2290 at 9 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Casciano in Val di Pesa FI 4 17062 17062
Impruneta FI 4 14615 31677
Greve in Chianti FI 11 13862 45539
Tavarnelle Val di Pesa FI 11 7800 53339
Scandicci FI 12 50609 103948
Montespertoli FI 12 13537 117485
Bagno a Ripoli FI 13 25611 143096
Firenze FI 13 382808 525904
Barberino Val d'Elsa FI 13 4386 530290
Lastra a Signa FI 16 20156 550446
Signa FI 18 19179 569625
Figline e Incisa Valdarno FI 18 23505 593130
Fiesole FI 18 13969 607099
Montelupo Fiorentino FI 19 14098 621197
Certaldo FI 19 16121 637318
Rignano sull'Arno FI 20 8651 645969
Campi Bisenzio FI 20 46166 692135
Sesto Fiorentino FI 20 48958 741093

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of Scandicci (50609 inhabitants)
13 Km S of Firenze (382808 inhabitants)
27 Km SE of Prato (191150 inhabitants)
38 Km N of Siena (53903 inhabitants)
40 Km SE of Pistoia (90315 inhabitants)
57 Km W of Arezzo (99543 inhabitants)
62 Km E of Lucca (89046 inhabitants)
67 Km E of Pisa (89158 inhabitants)
75 Km E of Livorno (159219 inhabitants)
82 Km E of Viareggio (62467 inhabitants)
87 Km SW of Imola (69797 inhabitants)
88 Km SW of Faenza (58541 inhabitants)
91 Km SW of Forlì (117913 inhabitants)
94 Km S of Bologna (386663 inhabitants)
97 Km E of Massa (69479 inhabitants)
97 Km SW of Cesena (96758 inhabitants)
100 Km N of Grosseto (82087 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.3 2022-05-09
04:40:35		 43.6543 11.2292 9 2022-05-09
04:45:20		 Sala Sismica INGV-Roma 104378531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-09 04:40:35 ± 0.07
Latitude 43.6543 ± 0.0054
Longitude 11.2292 ± 0.0062
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104378531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 611
Semi-minor axis of confidence ellipse (meter) 402
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61244
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 104378531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-09 04:45:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2022-05-09T04:41:22.72 3.0 undecidable manual S 1.4 0
IV.PTQR.HHZ. 2022-05-09T04:41:15.39 3.0 undecidable manual Pn 3.28 0
IV.SERM.EHZ. 2022-05-09T04:40:58.73 3.0 positive manual P -0.21 0
IV.CRE.HHZ. 2022-05-09T04:40:54.12 0.6 undecidable manual S 94 58.0974 50 0.5 62
IV.PII.HHZ. 2022-05-09T04:40:53.08 0.6 undecidable manual S 278 56.9985 50 -0.23 65
IV.SEI.HHZ. 2022-05-09T04:40:50.51 0.6 undecidable manual S 13 45.5211 50 0.25 67
IV.MOCL.EHZ. 2022-05-09T04:40:48.53 0.6 undecidable manual S 354 39.1275 50 0 71
IV.IMOL.HNZ. 2022-05-09T04:40:48.75 3.0 positive manual P -0.84 0
IV.BDI.HHZ. 2022-05-09T04:40:47.61 0.6 undecidable manual P 312 67.9764 50 0.26 64
IV.MPPT.EHZ. 2022-05-09T04:40:47.57 0.6 undecidable manual S 342 35.4423 50 0.01 71
IV.BOSL.HHZ. 2022-05-09T04:40:46.27 0.6 undecidable manual S 21 32.8449 50 -0.59 62
IV.CRE.HHZ. 2022-05-09T04:40:45.81 0.6 undecidable manual P 94 58.0974 50 -0.02 68
IV.PII.HHZ. 2022-05-09T04:40:45.83 1.0 positive manual P 278 56.9985 50 0.18 33
GU.POPM.HHZ. 2022-05-09T04:40:45.87 0.3 positive manual P 319 57.498 50 0.14 100
IV.CRMI.HHZ. 2022-05-09T04:40:44.79 0.6 undecidable manual S 308 25.4523 110 0.23 69
IV.CSNT.HHZ. 2022-05-09T04:40:43.08 0.6 undecidable manual S 166 20.6682 114 0.05 72
IV.MOCL.EHZ. 2022-05-09T04:40:43.00 1.0 positive manual P 354 39.1275 50 0.11 35
IV.SEI.HHZ. 2022-05-09T04:40:43.52 1.0 undecidable manual P 13 45.5211 50 -0.37 32
IV.MPPT.EHZ. 2022-05-09T04:40:42.06 1.0 positive manual P 342 35.4423 50 -0.27 34
IV.BOSL.HHZ. 2022-05-09T04:40:41.75 0.6 positive manual P 21 32.8449 50 -0.18 69
IV.OSSC.HHZ. 2022-05-09T04:40:41.09 0.6 undecidable manual S 175 14.5743 122 -0.05 73
IV.CRMI.HHZ. 2022-05-09T04:40:40.62 1.0 undecidable manual P 308 25.4523 110 0.02 36
IV.CSNT.HHZ. 2022-05-09T04:40:39.39 1.0 positive manual P 166 20.6682 114 -0.33 34
IV.OSSC.HHZ. 2022-05-09T04:40:38.53 0.6 positive manual P 175 14.5743 122 -0.1 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHE. ML:1.6 0.0003875 0.68 AML other m 2022-05-09T04:40:41.20
IV.OSSC.HHN. ML:1.5 0.000298 1.28 AML other m 2022-05-09T04:40:42.78
IV.CSNT.HHE. ML:1.3 0.000153 0.9 AML other m 2022-05-09T04:40:44.94
IV.CRMI.HHN. ML:1.1 0.0000746 0.52 AML other m 2022-05-09T04:40:45.22
IV.CRMI.HHE. ML:0.8 0.0000374 1.46 AML other m 2022-05-09T04:40:46.89
IV.CSNT.HHN. ML:1.3 0.000149 0.38 AML other m 2022-05-09T04:40:46.34
IV.BOSL.HHE. ML:1.3 0.00009645000000000001 0.26 AML other m 2022-05-09T04:40:46.62
IV.BOSL.HHN. ML:1.1 0.00005895 1.68 AML other m 2022-05-09T04:40:46.00
IV.MPPT.EHE. ML:1.1 0.000051500000000000005 1.34 AML other m 2022-05-09T04:40:47.02
IV.MPPT.EHN. ML:0.9 0.000032550000000000005 1.46 AML other m 2022-05-09T04:40:49.16
IV.SEI.HHN. ML:1.9 0.000214 0.38 AML other m 2022-05-09T04:40:51.66
IV.PII.HHE. ML:1.4 0.00005465000000000001 0.4 AML other m 2022-05-09T04:40:53.45
IV.PII.HHN. ML:1.4 0.00005685 0.38 AML other m 2022-05-09T04:40:55.08
IV.SEI.HHE. ML:1.5 0.00009484999999999999 0.44 AML other m 2022-05-09T04:40:55.26
GU.POPM.HHN. ML:1.3 0.000038400000000000005 0.24 AML other m 2022-05-09T04:40:57.20
GU.POPM.HHE. ML:1.1 0.00002835 0.26 AML other m 2022-05-09T04:40:57.76
IV.BDI.HHN. ML:1.1 0.000020850000000000002 1.38 AML other m 2022-05-09T04:40:59.93
IV.BDI.HHE. ML:1.1 0.00001815 1.4 AML other m 2022-05-09T04:41:00.26
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download