Earthquake with magnitude of ML 1.3 on date 07-10-2019 and time 08:22:57 (Italy) in region 6 km NW Chiusdino (SI)

A magnitude ML 1.3 earthquake occured in region: 6 km NW Chiusdino (SI), on

  • 07-10-2019 06:22:57 (UTC)
  • 07-10-2019 08:22:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2, 11.06 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
Chiusdino SI 6 1903 1903
Radicondoli SI 7 914 2817
Montieri GR 9 1204 4021
Monticiano SI 12 1571 5592
Castelnuovo di Val di Cecina PI 13 2231 7823
Casole d'Elsa SI 16 3897 11720
Sovicille SI 16 10116 21836
Monterotondo Marittimo GR 18 1371 23207
Pomarance PI 19 5897 29104

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Siena (53903 inhabitants)
49 Km N of Grosseto (82087 inhabitants)
63 Km S of Scandicci (50609 inhabitants)
65 Km S of Firenze (382808 inhabitants)
72 Km SE of Livorno (159219 inhabitants)
73 Km W of Arezzo (99543 inhabitants)
76 Km S of Prato (191150 inhabitants)
78 Km SE of Pisa (89158 inhabitants)
82 Km S of Pistoia (90315 inhabitants)
85 Km SE of Lucca (89046 inhabitants)
99 Km SE of Viareggio (62467 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
Rev 100 ML 1.3 2019-10-07
06:22:57
43.2 11.06 10 2019-10-07
06:44:57
Sala Sismica INGV-Roma 73102641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-07 06:22:57 ± 0.15
Latitude 43.20 ± 0.01
Longitude 11.06 ± 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 73102641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1182
Semi-minor axis of confidence ellipse (meter) 831
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 164
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 73102641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-07 06:44:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GATE.HHZ. 2019-10-07T06:24:35.81 3.0 undecidable manual Sg 14.01 0
SI.MOSI.HHZ. 2019-10-07T06:24:33.61 3.0 undecidable manual Sn -0.93 0
IV.TDS.HHZ. 2019-10-07T06:24:14.02 3.0 undecidable manual Pn 2.69 0
IV.MODR.HHZ. 2019-10-07T06:24:10.94 3.0 undecidable manual Sn -0.99 0
IV.EUCT.HNZ. 2019-10-07T06:24:09.95 3.0 undecidable manual Sn -0.7 0
CR.STON.BHZ. 2019-10-07T06:24:09.72 3.0 undecidable manual Pn 3.1 0
IV.SGTA.HHZ. 2019-10-07T06:24:01.28 3.0 undecidable manual Pg 10.47 0
IV.VIVA.HHZ. 2019-10-07T06:23:50.64 3.0 undecidable manual Sg 3.47 0
IV.PE3.EHZ. 2019-10-07T06:23:35.62 3.0 undecidable manual S 1.8 0
IT.FOPC.HGZ. 2019-10-07T06:23:30.28 3.0 undecidable manual S -1.85 0
IV.VIVA.HHZ. 2019-10-07T06:23:25.48 3.0 negative manual Pn 0.84 0
IV.COR1.EHZ. 2019-10-07T06:23:24.28 3.0 negative manual P 3.25 0
IV.SRES.HHZ. 2019-10-07T06:23:17.92 3.0 positive manual P -0.16 0
TV.SF14.HHN. 2019-10-07T06:23:17.60 0.3 undecidable manual S 138 0.6016 50 -0.57 62
TV.SF13.HHZ. 2019-10-07T06:23:16.67 0.6 undecidable manual S 133 0.5585 50 -0.23 45
IV.TOLF.HHZ. 2019-10-07T06:23:16.22 3.0 undecidable manual P -0.24 0
IV.CASP.HHZ. 2019-10-07T06:23:13.52 0.3 undecidable manual S 100
TV.SF14.HHN. 2019-10-07T06:23:10.43 0.6 undecidable manual P 138 0.6016 50 0.92 36
IV.CSNT.HHZ. 2019-10-07T06:23:09.51 0.3 undecidable manual S 31 0.3166 50 -0.21 71
TV.SF13.HHZ. 2019-10-07T06:23:09.71 0.6 undecidable manual P 133 0.5585 50 0.93 36
IV.MAGO.CHE. 2019-10-07T06:23:08.80 0.6 undecidable manual S 284 0.304 50 -0.56 44
IV.MAGO.CHE. 2019-10-07T06:23:04.73 0.6 undecidable manual P 284 0.304 50 0.3 47
IV.CSNT.HHZ. 2019-10-07T06:23:04.79 0.1 undecidable manual P 31 0.3166 50 0.15 96
IV.TRIF.CHZ. 2019-10-07T06:23:04.06 0.3 undecidable manual S 233 0.1466 122 -0.29 73
IV.TRIF.CHZ. 2019-10-07T06:23:01.77 0.1 undecidable manual P 233 0.1466 122 0.23 98
IV.FROS.CHZ. 2019-10-07T06:23:01.63 0.3 undecidable manual S 84 0.0674 144 -0.44 71
IV.FROS.CHZ. 2019-10-07T06:23:00.42 0.1 undecidable manual P 84 0.0674 144 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:1.5 0.0004415 0.98 AML other m 2019-10-07T06:23:02.55
IV.FROS.CHN. ML:1.6 0.000676 0.24 AML other m 2019-10-07T06:23:02.10
IV.TRIF.CHN. ML:1.3 0.000195 1.04 AML other m 2019-10-07T06:23:05.45
IV.TRIF.CHE. ML:1.4 0.00022 0.88 AML other m 2019-10-07T06:23:05.17
IV.VIVA.HHE. ML:3.5 0.000854 0.96 AML other m 2019-10-07T06:24:03.56
IV.VIVA.HHN. ML:3.4 0.0006885 0.76 AML other m 2019-10-07T06:24:04.83
IV.CSNT.HHE. ML:1 3.9285195E-5 0.2176 AML other m 2019-10-07T06:23:10.23
IV.CSNT.HHN. ML:0.9 3.1014965E-5 0.2208 AML other m 2019-10-07T06:23:10.54
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