Earthquake with magnitude of ML 1.5 on date 01-10-2020 and time 00:18:21 (UTC) in region 5 km SE San Godenzo (FI)

A magnitude ML 1.5 earthquake occured in region: 5 km SE San Godenzo (FI), on

  • 01-10-2020 00:18:21 (UTC)
  • 01-10-2020 02:18:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.89, 11.65 at 6 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
San Godenzo FI 5 1167 1167
Londa FI 7 1840 3007
Dicomano FI 10 5515 8522
Pratovecchio Stia AR 12 5845 14367
Rufina FI 14 7346 21713
Premilcuore FC 15 799 22512
Vicchio FI 16 8044 30556
Montemignaio AR 16 566 31122
Castel San Niccolò AR 17 2707 33829
Pelago FI 17 7660 41489
Portico e San Benedetto FC 19 756 42245

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Firenze (382808 inhabitants)
40 Km E of Scandicci (50609 inhabitants)
44 Km E of Prato (191150 inhabitants)
48 Km SW of Faenza (58541 inhabitants)
49 Km SW of Forlì (117913 inhabitants)
50 Km NW of Arezzo (99543 inhabitants)
52 Km S of Imola (69797 inhabitants)
55 Km SW of Cesena (96758 inhabitants)
59 Km E of Pistoia (90315 inhabitants)
68 Km NE of Siena (53903 inhabitants)
72 Km SE of Bologna (386663 inhabitants)
74 Km SW of Ravenna (159116 inhabitants)
76 Km W of Rimini (147750 inhabitants)
92 Km E of Lucca (89046 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 1.5 2020-10-01
00:18:21
43.89 11.65 6 2020-10-01
00:28:19
Sala Sismica INGV-Roma 83401391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-01 00:18:21 ± 0.1
Latitude 43.89 ± 0.01
Longitude 11.65 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83401391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 639
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.6601
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 83401391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-01 00:28:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
XK.GIZZ.HHZ. 2020-10-01T00:19:15.60 3.0 undecidable manual Sn -0.12 0
IV.CELI.HHZ. 2020-10-01T00:19:08.62 3.0 undecidable manual Sn -2.65 0
IV.SENA.HHZ. 2020-10-01T00:18:51.18 3.0 undecidable manual Sn -3.07 0
GU.POPM.HHZ. 2020-10-01T00:18:45.05 0.3 undecidable manual S 284 0.6601 50 0.34 65
IV.PE3.EHN. 2020-10-01T00:18:45.01 0.1 undecidable manual S 107 0.6412 50 0.85 73
XK.ALB1.HHZ. 2020-10-01T00:18:42.29 3.0 undecidable manual Pg 11.68 0
IV.CSNT.HHZ. 2020-10-01T00:18:39.42 0.1 undecidable manual S 212 0.4874 50 -0.17 94
IV.PII.HHZ. 2020-10-01T00:18:38.10 3.0 undecidable manual Sn 5.9 0
IV.MPPT.EHZ. 2020-10-01T00:18:37.12 0.1 undecidable manual S 280 0.4074 50 -0.1 97
IV.MOCL.EHZ. 2020-10-01T00:18:35.44 0.1 undecidable manual S 290 0.3561 99 -0.04 99
GU.POPM.HHZ. 2020-10-01T00:18:35.30 0.1 undecidable manual P 284 0.6601 50 0.36 87
IV.PE3.EHN. 2020-10-01T00:18:35.28 0.1 undecidable manual P 107 0.6412 50 0.65 80
IV.BRIS.HHZ. 2020-10-01T00:18:35.20 0.1 undecidable manual S 14 0.3489 99 0 100
IV.VISG.HHZ. 2020-10-01T00:18:34.63 0.1 undecidable manual S 333 0.339 99 -0.2 96
IV.SEI.HHZ. 2020-10-01T00:18:32.25 0.1 undecidable manual S 309 0.2671 102 0.14 98
CR.ZAG.BHZ. 2020-10-01T00:18:31.20 3.0 undecidable manual Pn 1.95 0
IV.CPGN.EHZ. 2020-10-01T00:18:31.86 0.1 undecidable manual P 100 0.4928 50 -0.22 93
IV.TEOL.HHZ. 2020-10-01T00:18:31.99 3.0 negative manual Pg 15.45 0
IV.CSNT.HHZ. 2020-10-01T00:18:31.60 0.1 undecidable manual P 212 0.4874 50 -0.39 89
IV.MPPT.EHZ. 2020-10-01T00:18:30.19 0.1 undecidable manual P 280 0.4074 50 -0.43 90
IV.RONT.HHZ. 2020-10-01T00:18:29.94 1.0 undecidable manual S 305 0.188 106 0.79 21
IV.BRIS.HHZ. 2020-10-01T00:18:29.03 0.1 undecidable manual P 14 0.3489 99 -0.42 91
IV.MOCL.EHZ. 2020-10-01T00:18:29.30 0.1 undecidable manual P 290 0.3561 99 -0.32 93
IV.VISG.HHZ. 2020-10-01T00:18:28.77 0.1 undecidable manual P 333 0.339 99 -0.47 91
IV.SEI.HHZ. 2020-10-01T00:18:27.54 0.1 undecidable manual P 309 0.2671 102 -0.13 99
IV.RONT.HHZ. 2020-10-01T00:18:26.54 0.1 undecidable manual P 305 0.188 106 0.58 90
IV.ASQU.HHZ. 2020-10-01T00:18:26.87 0.1 undecidable manual S 131 0.1358 112 -0.39 96
IV.ASQU.HHZ. 2020-10-01T00:18:24.68 0.1 undecidable manual P 131 0.1358 112 -0.19 100
IV.RINC.HHZ. 2020-10-01T00:18:24.52 0.3 undecidable manual S 270 0.0288 152 0.51 71
IV.RINC.HHZ. 2020-10-01T00:18:23.37 0.1 undecidable manual P 270 0.0288 152 0.38 98
IV.FDMO.HHZ. 2020-10-01T00:17:44.67 3.0 positive manual P 0.58 0
IV.LAV9.HHZ. 2020-10-01T00:17:43.00 3.0 positive manual P 0.35 0
IV.MMO1.EHZ. 2020-10-01T00:17:43.62 3.0 undecidable manual P 0.55 0
IV.MC2.EHZ. 2020-10-01T00:17:42.86 3.0 positive manual P 0 0
IV.NRCA.HHZ. 2020-10-01T00:17:41.59 3.0 undecidable manual P -0.36 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RINC.HHE. ML:0 0.0033106365 0.2 AML other m 2020-10-01T00:18:24.65
IV.RINC.HHN. ML:0 0.0027193305 0.28 AML other m 2020-10-01T00:18:24.72
IV.RONT.HHN. ML:0 0.0008872422 0.14 AML other m 2020-10-01T00:18:30.81
IV.RONT.HHE. ML:0 0.00084711545 0.14 AML other m 2020-10-01T00:18:31.57
IV.VISG.HHN. ML:0 7.702643E-5 0.14 AML other m 2020-10-01T00:18:34.88
IV.BRIS.HHE. ML:0 9.8244975E-5 0.28 AML other m 2020-10-01T00:18:40.16
IV.VISG.HHE. ML:0 5.696644E-5 0.3 AML other m 2020-10-01T00:18:36.54
IV.BRIS.HHN. ML:0 0.000102450695 0.36 AML other m 2020-10-01T00:18:37.99
IV.NRCA.HHE. ML:2.5 0.00013351255 0.12 AML other m 2020-10-01T00:17:44.06
IV.NRCA.HHN. ML:2.6 0.00018711385 0.14 AML other m 2020-10-01T00:17:42.88
IV.FDMO.HHE. ML:1 6.1385795E-6 0.1 AML other m 2020-10-01T00:17:49.49
IV.FDMO.HHN. ML:1 7.3154105E-6 0.08 AML other m 2020-10-01T00:17:48.97
IV.SEI.HHE. ML:1.4 0.00012208295 0.46 AML other m 2020-10-01T00:18:37.28
IV.SEI.HHN. ML:1.6 0.0002102796 0.52 AML other m 2020-10-01T00:18:40.73
IV.MOCL.EHE. ML:1.5 0.000114176785 0.08 AML other m 2020-10-01T00:18:36.00
IV.MOCL.EHN. ML:1.5 0.00011174222 0.14 AML other m 2020-10-01T00:18:35.76
IV.MPPT.EHE. ML:1.4 7.3995165E-5 0.16 AML other m 2020-10-01T00:18:37.59
IV.MPPT.EHN. ML:1.6 0.000117862915 0.22 AML other m 2020-10-01T00:18:37.74
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