Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 29-05-2021 and time 00:28:32 (Italy) in region 6 km E Tavarnelle Val di Pesa (FI)

A magnitude ML 1.2 earthquake occured in region: 6 km E Tavarnelle Val di Pesa (FI), on

  • 28-05-2021 22:28:32 (UTC)
  • 29-05-2021 00:28:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5710, 11.2420 at 8 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
Tavarnelle Val di Pesa FI 6 7800 7800
Greve in Chianti FI 6 13862 21662
Barberino Val d'Elsa FI 6 4386 26048
San Casciano in Val di Pesa FI 11 17062 43110
Castellina in Chianti SI 12 2859 45969
Impruneta FI 13 14615 60584
Poggibonsi SI 14 29196 89780
Radda in Chianti SI 14 1613 91393
Montespertoli FI 16 13537 104930
Certaldo FI 16 16121 121051
Gaiole in Chianti SI 19 2758 123809
Colle di Val d'Elsa SI 19 21620 145429
San Gimignano SI 20 7820 153249
Monteriggioni SI 20 9810 163059
Figline e Incisa Valdarno FI 20 23505 186564

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km S of Scandicci (50609 inhabitants)
22 Km S of Firenze (382808 inhabitants)
29 Km N of Siena (53903 inhabitants)
37 Km SE of Prato (191150 inhabitants)
48 Km SE of Pistoia (90315 inhabitants)
53 Km W of Arezzo (99543 inhabitants)
67 Km E of Lucca (89046 inhabitants)
70 Km E of Pisa (89158 inhabitants)
75 Km E of Livorno (159219 inhabitants)
86 Km E of Viareggio (62467 inhabitants)
91 Km N of Grosseto (82087 inhabitants)
95 Km SW of Faenza (58541 inhabitants)
95 Km SW of Imola (69797 inhabitants)
97 Km SW of Forlì (117913 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 1.2 2021-05-28
22:28:32		 43.5707 11.2422 9 2021-05-28
22:37:41		 Sala Sismica INGV-Roma 90582261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-28 22:28:32 ± 0.07
Latitude 43.5707 ± 0.0036
Longitude 11.2422 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90582261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 329
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.10342
Epicentral distance of station farthest from the epicenter (degree) 0.60704
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 90582261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-28 22:37:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LMD.HHZ. 2021-05-28T22:28:53.51 3.0 undecidable manual S 33 67.377 50 0.46 0
IV.SFI.EHN. 2021-05-28T22:28:51.38 0.6 undecidable manual S 52 60.9945 50 0.04 46
IV.CRE.HHE. 2021-05-28T22:28:50.35 0.6 undecidable manual S 84 57.2982 50 0.01 47
IV.PII.HHZ. 2021-05-28T22:28:50.82 0.3 undecidable manual S 286 59.9955 50 -0.24 67
IV.SEI.HHZ. 2021-05-28T22:28:49.76 0.6 undecidable manual S 10 54.4011 50 0.17 46
IV.ASQU.HHZ. 2021-05-28T22:28:48.22 0.6 undecidable manual S 60 50.5161 50 -0.33 44
IV.MPPT.EHZ. 2021-05-28T22:28:47.10 0.6 undecidable manual S 344 44.622 50 0.14 47
IV.FROS.CHE. 2021-05-28T22:28:45.72 0.6 undecidable manual S 190 40.626 50 -0.19 47
IV.LMD.HHZ. 2021-05-28T22:28:44.51 1.0 undecidable manual P 33 67.377 50 0.35 21
IV.RUFI.EHZ. 2021-05-28T22:28:44.14 3.0 undecidable manual S 36 36.6411 50 -0.68 0
IV.CRMI.HHZ. 2021-05-28T22:28:43.75 0.6 undecidable manual S 320 32.6451 105 0.03 49
IV.PII.HHZ. 2021-05-28T22:28:43.23 1.0 positive manual P 286 59.9955 50 0.21 22
IV.SFI.EHN. 2021-05-28T22:28:43.34 0.1 undecidable manual P 52 60.9945 50 0.17 90
IV.SEI.HHZ. 2021-05-28T22:28:42.34 1.0 undecidable manual P 10 54.4011 50 0.18 23
IV.CRE.HHE. 2021-05-28T22:28:42.79 0.1 undecidable manual P 84 57.2982 50 0.19 90
IV.ASQU.HHZ. 2021-05-28T22:28:41.54 1.0 negative manual P 60 50.5161 50 -0.02 24
IV.FROS.CHE. 2021-05-28T22:28:40.06 0.1 undecidable manual P 190 40.626 50 0.03 96
IV.MPPT.EHZ. 2021-05-28T22:28:40.79 0.1 undecidable manual P 344 44.622 50 0.14 93
IV.RUFI.EHZ. 2021-05-28T22:28:39.08 0.1 undecidable manual P 36 36.6411 50 -0.33 91
IV.CRMI.HHZ. 2021-05-28T22:28:39.19 0.6 undecidable manual P 320 32.6451 105 0.41 45
IV.CSNT.HHZ. 2021-05-28T22:28:36.92 0.6 undecidable manual S 160 11.4774 126 -0.05 50
IV.FIR.HHZ. 2021-05-28T22:28:36.47 0.1 undecidable manual P 3 22.6551 110 -0.38 92
IV.CSNT.HHZ. 2021-05-28T22:28:34.96 0.1 positive manual P 160 11.4774 126 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSNT.HHE. ML:0.0 0.00043599999999999997 0.2 AML other m 2021-05-28T22:28:37.27
IV.CSNT.HHN. ML:0.0 0.0004935 0.22 AML other m 2021-05-28T22:28:37.40
IV.CRMI.HHN. ML:0.6 0.000018940495000000002 0.1408 AML other m 2021-05-28T22:28:45.95
IV.CRMI.HHE. ML:0.4 0.000010964853 0.1408 AML other m 2021-05-28T22:28:45.13
IV.ASQU.HHN. ML:1.1 0.00003325 0.48 AML other m 2021-05-28T22:28:48.36
IV.ASQU.HHE. ML:1.3 0.00004765 0.5 AML other m 2021-05-28T22:28:48.61
IV.SEI.HHE. ML:1.6 0.00008964722999999999 0.3968 AML other m 2021-05-28T22:28:52.90
IV.SEI.HHN. ML:1.7 0.00010930000000000001 1.36 AML other m 2021-05-28T22:28:51.08
IV.LMD.HHN. ML:1.2 0.0000286 0.12 AML other m 2021-05-28T22:28:53.90
IV.LMD.HHE. ML:1.2 0.0000313 1.06 AML other m 2021-05-28T22:28:53.43
IV.RUFI.EHE. ML:1.3 0.000080975415 0.1664 AML other m 2021-05-28T22:28:44.61
IV.RUFI.EHN. ML:1.1 0.000049481374999999995 0.1536 AML other m 2021-05-28T22:28:45.11
IV.PII.HHE. ML:1.1 0.000024355485000000003 0.256 AML other m 2021-05-28T22:28:53.58
IV.PII.HHN. ML:1.0 0.000020271155 0.4608 AML other m 2021-05-28T22:28:52.31
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