Earthquake with magnitude of ML 1.6 on date 07-09-2020 and time 09:27:05 (Italy) in region Castelfiorentino (FI)

A magnitude ML 1.6 earthquake occured in region: Castelfiorentino (FI), on

  • 07-09-2020 07:27:05 (UTC)
  • 07-09-2020 09:27:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.61, 10.98 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
Castelfiorentino FI 0 17504 17504
Gambassi Terme FI 8 4870 22374
Montaione FI 8 3700 26074
Certaldo FI 8 16121 42195
Montespertoli FI 9 13537 55732
Empoli FI 13 48109 103841
San Miniato PI 13 27934 131775
Montelupo Fiorentino FI 14 14098 145873
Capraia e Limite FI 15 7670 153543
Palaia PI 16 4612 158155
San Gimignano SI 16 7820 165975
Tavarnelle Val di Pesa FI 17 7800 173775
Barberino Val d'Elsa FI 17 4386 178161
San Casciano in Val di Pesa FI 18 17062 195223
Montopoli in Val d'Arno PI 19 11148 206371
Cerreto Guidi FI 19 10870 217241
Fucecchio FI 19 23618 240859
Santa Croce sull'Arno PI 20 14601 255460

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Scandicci (50609 inhabitants)
29 Km SW of Firenze (382808 inhabitants)
32 Km SW of Prato (191150 inhabitants)
37 Km S of Pistoia (90315 inhabitants)
43 Km NW of Siena (53903 inhabitants)
46 Km SE of Lucca (89046 inhabitants)
48 Km E of Pisa (89158 inhabitants)
54 Km E of Livorno (159219 inhabitants)
65 Km E of Viareggio (62467 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
82 Km SE of Massa (69479 inhabitants)
88 Km SE of Carrara (63133 inhabitants)
95 Km N of Grosseto (82087 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2020-09-07
07:27:05
43.61 10.98 10 2020-09-07
07:44:48
Sala Sismica INGV-Roma 82705571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-07 07:27:05 ± 0.2
Latitude 43.61 ± 0.01
Longitude 10.98 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82705571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 790
Semi-minor axis of confidence ellipse (meter) 293
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.71046
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 82705571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-07 07:44:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2020-09-07T07:28:53.72 3.0 undecidable manual Sn -5.35 0
IV.VAGA.HHZ. 2020-09-07T07:28:25.30 3.0 undecidable manual Sn -0.45 0
ST.RONC.EHZ. 2020-09-07T07:28:11.35 3.0 undecidable manual Sg 6.17 0
IV.RMP.HHZ. 2020-09-07T07:28:03.32 3.0 undecidable manual Sn 1.6 0
IV.PTRJ.HHZ. 2020-09-07T07:28:02.12 3.0 positive manual Pg 10.47 0
IV.ROSPO.HHZ. 2020-09-07T07:27:56.04 3.0 negative manual Pg 8.66 0
IV.CRND.HNZ. 2020-09-07T07:27:36.39 3.0 undecidable manual Pn 0.95 0
IV.RMP.HHZ. 2020-09-07T07:27:33.99 3.0 positive manual Pn -1.58 0
IV.CRE.HHZ. 2020-09-07T07:27:29.20 0.3 undecidable manual S 89 0.7051 50 0.07 70
IV.RONT.HHZ. 2020-09-07T07:27:24.80 0.6 undecidable manual S 40 0.5063 50 1.55 27
IV.SEI.HHZ. 2020-09-07T07:27:23.87 0.6 undecidable manual S 31 0.5243 50 0.1 48
IV.TRIF.CHZ. 2020-09-07T07:27:22.72 0.3 undecidable manual S 186 0.4955 50 -0.2 71
GU.POPM.HHZ. 2020-09-07T07:27:21.91 0.6 undecidable manual S 340 0.4649 50 -0.11 49
GU.MAIM.HHE. 2020-09-07T07:27:21.24 0.3 undecidable manual S 311 0.4658 50 -0.8 60
IV.RUFI.EHZ. 2020-09-07T07:27:20.73 0.6 undecidable manual S 59 0.4479 50 -0.78 40
IV.FROS.CHN. 2020-09-07T07:27:20.05 0.3 undecidable manual S 162 0.4182 50 -0.58 66
IV.CRE.HHZ. 2020-09-07T07:27:19.92 0.1 undecidable manual P 89 0.7051 50 0.78 76
MN.VLC.HHZ. 2020-09-07T07:27:19.32 0.1 undecidable manual P 323 0.697 50 0.32 89
IV.VISG.HHE. 2020-09-07T07:27:19.08 0.1 undecidable manual P 29 0.6673 50 0.58 83
GU.SARM.EHE. 2020-09-07T07:27:19.56 0.1 undecidable manual P 324 0.7105 50 0.33 88
IV.MPPT.EHZ. 2020-09-07T07:27:18.32 0.3 undecidable manual S 13 0.3588 50 -0.56 67
IV.PII.HHZ. 2020-09-07T07:27:17.98 0.6 undecidable manual S 289 0.3462 50 -0.52 45
GU.CARD.HHZ. 2020-09-07T07:27:16.55 0.1 undecidable manual P 320 0.5495 50 0.06 97
IV.SEI.HHZ. 2020-09-07T07:27:16.20 0.1 undecidable manual P 31 0.5243 50 0.15 95
IV.BRSN.EHZ. 2020-09-07T07:27:16.96 3.0 negative manual Pg 0.58 0
IV.RONT.HHZ. 2020-09-07T07:27:16.38 0.1 undecidable manual P 40 0.5063 50 0.63 84
IV.CSNT.HHZ. 2020-09-07T07:27:15.23 0.6 undecidable manual S 121 0.2635 50 -0.81 41
GU.MAIM.HHE. 2020-09-07T07:27:15.17 0.1 undecidable manual P 311 0.4658 50 0.12 97
IV.TRIF.CHZ. 2020-09-07T07:27:15.93 0.1 undecidable manual P 186 0.4955 50 0.37 92
GU.POPM.HHZ. 2020-09-07T07:27:15.33 0.1 undecidable manual P 340 0.4649 50 0.29 94
IT.FIR.HHZ. 2020-09-07T07:27:15.59 3.0 undecidable manual P 0
IV.FROS.CHN. 2020-09-07T07:27:14.32 0.1 undecidable manual P 162 0.4182 50 0.08 99
IV.RUFI.EHZ. 2020-09-07T07:27:14.51 0.1 undecidable manual P 59 0.4479 50 -0.24 95
IV.MAGO.CHZ. 2020-09-07T07:27:14.36 0.1 undecidable manual P 215 0.4065 50 0.32 94
IV.PII.HHZ. 2020-09-07T07:27:13.10 0.1 undecidable manual P 289 0.3462 50 0.09 100
IV.MPPT.EHZ. 2020-09-07T07:27:12.87 0.1 undecidable manual P 13 0.3588 50 -0.35 94
IV.CRMI.HHZ. 2020-09-07T07:27:12.91 0.3 undecidable manual S 0 0.188 115 -0.59 69
IV.CSNT.HHZ. 2020-09-07T07:27:10.95 0.1 undecidable manual P 121 0.2635 50 -0.64 88
IV.CRMI.HHZ. 2020-09-07T07:27:09.85 0.1 positive manual P 0 0.188 115 -0.27 99
IT.FIE.HGZ. 2020-09-07T07:27:08.98 3.0 undecidable manual P 0.29 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HNE. ML:1.7 0.00037812275 0.6784 AML other m 2020-09-07T07:27:13.38
IV.CRMI.HHE. ML:1.4 0.00016455935 0.6592 AML other m 2020-09-07T07:27:13.37
IV.CRMI.HHN. ML:1.2 0.00011856499 0.1408 AML other m 2020-09-07T07:27:13.98
IV.CRMI.HNN. ML:1.5 0.0002227487 0.2208 AML other m 2020-09-07T07:27:13.36
IV.CSNT.HHN. ML:1.4 0.0001146101 0.5568 AML other m 2020-09-07T07:27:17.86
IV.CSNT.HHE. ML:1.3 9.2021125E-5 0.1408 AML other m 2020-09-07T07:27:15.68
IV.MPPT.EHE. ML:1.4 9.0409085E-5 0.2208 AML other m 2020-09-07T07:27:18.46
IV.MPPT.EHN. ML:1.4 9.0036695E-5 0.1408 AML other m 2020-09-07T07:27:19.22
IV.PII.HHE. ML:1.7 0.0001688845 0.24 AML other m 2020-09-07T07:27:18.25
IV.PII.HHN. ML:1.8 0.0002028777 0.32 AML other m 2020-09-07T07:27:18.57
IV.MAGO.CHN. ML:1.4 6.964816E-5 0.496 AML other m 2020-09-07T07:27:21.19
IV.MAGO.CHE. ML:1.4 6.926323E-5 0.112 AML other m 2020-09-07T07:27:22.45
IV.RUFI.EHE. ML:1.5 8.6114975E-5 0.2176 AML other m 2020-09-07T07:27:21.58
IV.RUFI.EHN. ML:1.4 5.9540272E-5 7.0592 AML other m 2020-09-07T07:27:21.33
GU.POPM.HHE. ML:1.7 0.0001350825 0.2624 AML other m 2020-09-07T07:27:22.78
GU.POPM.HHN. ML:1.9 0.00019960315 0.1632 AML other m 2020-09-07T07:27:23.54
IV.FIR.HNN. ML:1.8 0.00029630285 0.4512 AML other m 2020-09-07T07:27:16.60
IV.FIR.HHN. ML:1.8 0.00028088675 0.1792 AML other m 2020-09-07T07:27:15.69
IV.FIR.HHE. ML:1.8 0.0003001592 0.32 AML other m 2020-09-07T07:27:15.29
IV.FIR.HNE. ML:1.8 0.0003201498 0.3104 AML other m 2020-09-07T07:27:15.29
IV.TRIF.CHN. ML:1.6 8.759226E-5 0.192 AML other m 2020-09-07T07:27:24.00
IV.TRIF.CHE. ML:1.6 8.910434E-5 0.2112 AML other m 2020-09-07T07:27:25.09
IV.SEI.HHN. ML:1.8 0.0001421453 0.3584 AML other m 2020-09-07T07:27:25.38
IV.SEI.HHE. ML:1.7 0.000107824355 0.3776 AML other m 2020-09-07T07:27:26.80
IV.RONT.HHN. ML:2 0.00023668565 0.2816 AML other m 2020-09-07T07:27:26.24
IV.RONT.HHE. ML:2.1 0.0003045379 0.3776 AML other m 2020-09-07T07:27:27.46
GU.CARD.HHN. ML:1.6 7.762849E-5 0.1216 AML other m 2020-09-07T07:27:25.82
GU.CARD.HHE. ML:1.5 6.674264E-5 0.1792 AML other m 2020-09-07T07:27:25.88
IV.BRSN.HNE. ML:2.7 0.0004139104 0.9504 AML other m 2020-09-07T07:27:19.04
IV.BRSN.EHE. ML:2.6 0.00030575395 0.9184 AML other m 2020-09-07T07:27:19.03
IV.BRSN.EHN. ML:2.7 0.0003601125 0.3392 AML other m 2020-09-07T07:27:16.89
IV.BRSN.HNN. ML:2.7 0.000396646 1.6 AML other m 2020-09-07T07:27:37.49
MN.VLC.HNN. ML:2 0.0001299683 5.7408 AML other m 2020-09-07T07:27:32.87
MN.VLC.HNE. ML:1.8 9.4042725E-5 3.3792 AML other m 2020-09-07T07:27:43.41
MN.VLC.HHN. ML:1.4 3.803213E-5 2.0032 AML other m 2020-09-07T07:27:42.14
MN.VLC.HHE. ML:1.5 4.469704E-5 2.1376 AML other m 2020-09-07T07:27:36.60
IV.CRE.HHE. ML:1.2 2.6402483E-5 0.5376 AML other m 2020-09-07T07:27:29.35
IV.CRE.HHN. ML:1.2 2.420545E-5 0.2176 AML other m 2020-09-07T07:27:30.24
IV.RMP.HHE. ML:4.3 0.003663131 0.0576 AML other m 2020-09-07T07:28:09.44
IV.RMP.HHN. ML:4.1 0.002378038 0.0576 AML other m 2020-09-07T07:28:11.13
IV.CRND.HNN. ML:2.9 0.000142860425 0.6208 AML other m 2020-09-07T07:27:48.56
IV.CRND.HNE. ML:3.2 0.00027473855 0.096 AML other m 2020-09-07T07:27:48.08
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download