Earthquake with magnitude of ML 1.2 on date 03-01-2020 and time 09:59:23 (Italy) in region 6 km S Radicondoli (SI)

A magnitude ML 1.2 earthquake occured in region: 6 km S Radicondoli (SI), on

  • 03-01-2020 08:59:23 (UTC)
  • 03-01-2020 09:59:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.21, 11.04 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Radicondoli SI 6 914 914
Chiusdino SI 7 1903 2817
Montieri GR 9 1204 4021
Castelnuovo di Val di Cecina PI 11 2231 6252
Monticiano SI 14 1571 7823
Casole d'Elsa SI 15 3897 11720
Monterotondo Marittimo GR 16 1371 13091
Pomarance PI 17 5897 18988
Sovicille SI 18 10116 29104

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Siena (53903 inhabitants)
50 Km N of Grosseto (82087 inhabitants)
62 Km S of Scandicci (50609 inhabitants)
65 Km S of Firenze (382808 inhabitants)
70 Km SE of Livorno (159219 inhabitants)
74 Km W of Arezzo (99543 inhabitants)
75 Km S of Prato (191150 inhabitants)
76 Km SE of Pisa (89158 inhabitants)
81 Km S of Pistoia (90315 inhabitants)
83 Km SE of Lucca (89046 inhabitants)
97 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 1.2 2020-01-03
08:59:23
43.21 11.04 9 2020-01-03
09:16:18
Sala Sismica INGV-Roma 75221071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-03 08:59:23 ± 0.27
Latitude 43.21 ± 0.02
Longitude 11.04 ± 0.02
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 75221071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2328
Semi-minor axis of confidence ellipse (meter) 1185
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 153
Circular confidence region, given by single value of horizontal uncertainty (meter) 2330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.43707
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 75221071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-03 09:16:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
AC.VLO.HHZ. 2020-01-03T09:01:05.21 3.0 undecidable manual Pg 20.110001 0
AC.KBN.HHZ. 2020-01-03T09:01:04.91 3.0 undecidable manual Pn 7.92 0
IV.CAPR.HNZ. 2020-01-03T09:00:50.20 3.0 undecidable manual Sg 7.76 0
IV.EUCT.HNZ. 2020-01-03T09:00:41.96 3.0 undecidable manual Sn 1.71 0
IV.CADC.HNZ. 2020-01-03T09:00:32.16 3.0 undecidable manual Sn -4.89 0
IV.MILZ.HHZ. 2020-01-03T09:00:30.33 3.0 undecidable manual Pn 0.32 0
IT.VNF1.HGZ. 2020-01-03T09:00:16.76 3.0 undecidable manual Sn 0.91 0
IV.FVI.HHZ. 2020-01-03T09:00:14.02 3.0 negative manual Pn 0.14 0
IV.VBKN.HHZ. 2020-01-03T09:00:05.58 3.0 negative manual Pg 8.6 0
IV.LRP.EHZ. 2020-01-03T09:00:02.29 3.0 undecidable manual Sn -4.3 0
IV.BLLA.EHZ. 2020-01-03T08:59:59.94 3.0 undecidable manual Sn -2.29 0
IV.SERM.HNZ. 2020-01-03T08:59:56.40 3.0 positive manual Pg 5.1 0
IT.FIE.HGZ. 2020-01-03T08:59:54.73 3.0 undecidable manual Sg 2.42 0
IV.FIR.HHZ. 2020-01-03T08:59:50.69 3.0 undecidable manual Sg -1.04 0
IV.MNTV.HNZ. 2020-01-03T08:59:50.32 3.0 undecidable manual Pn -3.81 0
IV.FOSV.EHZ. 2020-01-03T08:59:47.10 3.0 undecidable manual Sn -0.82 0
IV.MNTT.EHZ. 2020-01-03T08:59:41.54 3.0 undecidable manual Pg 2.52 0
IV.CASP.HHZ. 2020-01-03T08:59:38.72 0.6 undecidable manual S 197 0.4371 50 -0.65 41
IV.MAGO.CHZ. 2020-01-03T08:59:34.20 0.6 undecidable manual S 283 0.2824 50 -0.61 43
IV.CASP.HHZ. 2020-01-03T08:59:33.34 0.3 undecidable manual P 197 0.4371 50 0.63 63
IV.MAGO.CHZ. 2020-01-03T08:59:30.40 0.6 undecidable manual P 283 0.2824 50 0.33 47
IV.FOSV.EHZ. 2020-01-03T08:59:29.74 3.0 undecidable manual P -2.85 0
IV.TRIF.CHZ. 2020-01-03T08:59:29.60 0.3 undecidable manual S 226 0.1358 122 -0.18 75
IV.TRIF.CHZ. 2020-01-03T08:59:27.40 0.1 undecidable manual P 226 0.1358 122 0.23 99
IV.FROS.CHZ. 2020-01-03T08:59:27.85 0.3 undecidable manual S 90 0.0872 134 -0.45 71
IV.FROS.CHZ. 2020-01-03T08:59:26.53 0.1 undecidable manual P 90 0.0872 134 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:1.2 0.000229 1.76 AML other m 2020-01-03T08:59:27.96
IV.FROS.CHN. ML:1.3 0.000289 0.08 AML other m 2020-01-03T08:59:28.43
IV.TRIF.CHN. ML:1.4 0.0002445 0.98 AML other m 2020-01-03T08:59:30.29
IV.TRIF.CHE. ML:1.5 0.000278 0.5 AML other m 2020-01-03T08:59:31.04
IV.MAGO.CHE. ML:0.9 3.2817505E-5 0.5184 AML other m 2020-01-03T08:59:34.50
IV.MAGO.CHN. ML:1 4.568515E-5 0.2752 AML other m 2020-01-03T08:59:34.96
IV.CASP.HHE. ML:1.2 4.4260375E-5 0.1408 AML other m 2020-01-03T08:59:38.96
IV.CASP.HHN. ML:1.1 3.59368805E-5 0.1344 AML other m 2020-01-03T08:59:39.15
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