Earthquake with magnitude of ML 1.8 on date 02-01-2020 and time 10:12:25 (Italy) in region 6 km E Castelnuovo di Val di Cecina (PI)

A magnitude ML 1.8 earthquake occured in region: 6 km E Castelnuovo di Val di Cecina (PI), on

  • 02-01-2020 09:12:25 (UTC)
  • 02-01-2020 10:12:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.19, 10.98 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castelnuovo di Val di Cecina PI 6 2231 2231
Montieri GR 7 1204 3435
Radicondoli SI 9 914 4349
Chiusdino SI 10 1903 6252
Monterotondo Marittimo GR 11 1371 7623
Pomarance PI 15 5897 13520
Monticiano SI 17 1571 15091
Massa Marittima GR 17 8375 23466
Casole d'Elsa SI 18 3897 27363

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Siena (53903 inhabitants)
49 Km N of Grosseto (82087 inhabitants)
65 Km S of Scandicci (50609 inhabitants)
68 Km SE of Livorno (159219 inhabitants)
68 Km SW of Firenze (382808 inhabitants)
75 Km SE of Pisa (89158 inhabitants)
77 Km S of Prato (191150 inhabitants)
79 Km W of Arezzo (99543 inhabitants)
82 Km SE of Lucca (89046 inhabitants)
83 Km S of Pistoia (90315 inhabitants)
96 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 1.8 2020-01-02
09:12:25
43.19 10.98 8 2020-01-02
09:22:51
Sala Sismica INGV-Roma 75196031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-02 09:12:25 ± 0.11
Latitude 43.19 ± 0.01
Longitude 10.98 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75196031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 731
Semi-minor axis of confidence ellipse (meter) 518
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 131
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
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) 0.87054
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 75196031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-02 09:22:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2020-01-02T09:13:32.97 3.0 undecidable manual Sn -0.7 0
IV.CRMI.HHN. 2020-01-02T09:12:46.20 0.3 undecidable manual S 360 0.6043 50 -0.56 62
IV.MGAB.HHZ. 2020-01-02T09:12:42.70 0.3 undecidable manual P 108 0.8705 50 0.28 63
IV.SACS.HHZ. 2020-01-02T09:12:41.20 0.1 undecidable manual P 116 0.759 50 0.69 76
IV.MAON.HHZ. 2020-01-02T09:12:41.20 0.1 undecidable manual P 172 0.7698 50 0.5 82
IV.CASP.HHZ. 2020-01-02T09:12:40.00 0.3 undecidable manual S 192 0.4083 50 -0.95 55
IV.CELB.HHZ. 2020-01-02T09:12:40.69 0.1 undecidable manual P 232 0.7177 50 0.88 71
IV.CSNT.HHE. 2020-01-02T09:12:38.93 0.3 undecidable manual S 38 0.3606 50 -0.59 65
IV.CRMI.HHN. 2020-01-02T09:12:38.14 0.1 undecidable manual P 360 0.6043 50 0.26 89
IV.MCIV.CHZ. 2020-01-02T09:12:38.90 0.1 undecidable manual P 129 0.6538 50 0.19 90
TV.SF04.EHZ. 2020-01-02T09:12:38.15 0.1 undecidable manual P 125 0.6097 50 0.19 91
TV.SF01.EHZ. 2020-01-02T09:12:37.42 0.3 undecidable manual P 132 0.5684 50 0.16 69
IV.MAGO.CHZ. 2020-01-02T09:12:35.61 0.6 undecidable manual S 289 0.25 106 -0.17 49
IV.ARCI.HHZ. 2020-01-02T09:12:35.84 0.1 undecidable manual P 133 0.4946 50 -0.15 94
IV.CASP.HHZ. 2020-01-02T09:12:34.31 0.1 undecidable manual P 192 0.4083 50 -0.21 94
IV.OSSC.HHZ. 2020-01-02T09:12:34.15 0.3 negative manual P 30 0.384 50 0.05 73
IV.RIBO.EHZ.01 2020-01-02T09:12:34.65 0.3 undecidable manual S 169 0.2455 107 -0.97 56
IV.CSNT.HHE. 2020-01-02T09:12:33.28 0.1 undecidable manual P 38 0.3606 50 -0.41 91
IV.RIBO.EHZ.01 2020-01-02T09:12:31.27 0.1 undecidable manual P 169 0.2455 107 -0.17 98
IV.MAGO.CHZ. 2020-01-02T09:12:31.60 0.1 undecidable manual P 289 0.25 106 0.06 100
IV.FROS.CHZ. 2020-01-02T09:12:31.33 0.3 undecidable manual S 81 0.1277 120 -0.1 76
IV.TRIF.CHZ. 2020-01-02T09:12:30.23 0.3 undecidable manual S 218 0.0953 128 -0.14 76
IV.FROS.CHZ. 2020-01-02T09:12:29.26 0.1 undecidable manual P 81 0.1277 120 0.24 99
IV.TRIF.CHZ. 2020-01-02T09:12:28.63 0.1 undecidable manual P 218 0.0953 128 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHE. ML:2.6 0.0062723125 0.1216 AML other m 2020-01-02T09:12:30.42
IV.TRIF.CHN. ML:2.7 0.0065097435 0.1024 AML other m 2020-01-02T09:12:30.65
IV.FROS.CHE. ML:2 0.001197764 0.2432 AML other m 2020-01-02T09:12:32.33
IV.FROS.CHN. ML:2.3 0.0021640165 0.128 AML other m 2020-01-02T09:12:32.23
IV.RIBO.EHE.01 ML:2 0.00054802025 0.1792 AML other m 2020-01-02T09:12:34.91
IV.MAGO.CHN. ML:1.5 0.00017085695 0.768 AML other m 2020-01-02T09:12:35.40
IV.MAGO.CHE. ML:1.5 0.0001844219 0.1728 AML other m 2020-01-02T09:12:36.18
IV.CASP.HHN. ML:1.5 8.925146E-5 0.1792 AML other m 2020-01-02T09:12:40.32
IV.CASP.HHE. ML:1.3 5.896351E-5 0.1792 AML other m 2020-01-02T09:12:39.91
IV.ARCI.HHN. ML:1.8 0.00014027595 0.224 AML other m 2020-01-02T09:12:43.20
IV.ARCI.HNE. ML:1.7 0.000123525815 0.3648 AML other m 2020-01-02T09:12:45.01
TV.SF04.EHE. ML:2.2 0.00027278835 0.16 AML other m 2020-01-02T09:12:38.69
TV.SF04.EHN. ML:2.3 0.00034249255 0.2368 AML other m 2020-01-02T09:12:39.12
IV.MCIV.CHN. ML:1.7 7.5902215E-5 0.1536 AML other m 2020-01-02T09:12:40.85
IV.MCIV.CHE. ML:1.8 9.4667165E-5 0.128 AML other m 2020-01-02T09:12:39.51
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