Earthquake with magnitude of ML 1.2 on date 16-01-2020 and time 00:41:05 (Italy) in region 7 km SW Pomarance (PI)

A magnitude ML 1.2 earthquake occured in region: 7 km SW Pomarance (PI), on

  • 15-01-2020 23:41:05 (UTC)
  • 16-01-2020 00:41:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.24, 10.83 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
Pomarance PI 7 5897 5897
Castelnuovo di Val di Cecina PI 7 2231 8128
Monterotondo Marittimo GR 11 1371 9499
Monteverdi Marittimo PI 12 758 10257
Radicondoli SI 17 914 11171
Volterra PI 18 10519 21690
Montecatini Val di Cecina PI 18 1749 23439
Guardistallo PI 18 1234 24673
Casale Marittimo PI 19 1122 25795
Montescudaio PI 19 2144 27939
Bibbona LI 19 3175 31114
Montieri GR 20 1204 32318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Siena (53903 inhabitants)
55 Km SE of Livorno (159219 inhabitants)
58 Km NW of Grosseto (82087 inhabitants)
63 Km SE of Pisa (89158 inhabitants)
64 Km SW of Scandicci (50609 inhabitants)
68 Km SW of Firenze (382808 inhabitants)
72 Km SE of Lucca (89046 inhabitants)
74 Km SW of Prato (191150 inhabitants)
77 Km S of Pistoia (90315 inhabitants)
84 Km SE of Viareggio (62467 inhabitants)
88 Km W of Arezzo (99543 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 2020-01-15
23:41:05
43.25 10.83 8 2020-01-15
23:47:23
Sala Sismica INGV-Roma 75571881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-15 23:41:05 ± 0.11
Latitude 43.25 ± 0.01
Longitude 10.83 ± 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 75571881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 629
Semi-minor axis of confidence ellipse (meter) 577
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.1313
Epicentral distance of station farthest from the epicenter (degree) 0.67539
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 75571881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-15 23:47:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PII.HHE. 2020-01-15T23:41:23.12 3.0 undecidable manual S 335 0.527 50 -1.08 0
IV.CASP.HHE. 2020-01-15T23:41:21.71 0.6 undecidable manual S 177 0.4551 50 -0.35 46
IV.CSNT.HHZ. 2020-01-15T23:41:20.07 0.6 undecidable manual S 55 0.402 50 -0.43 46
IV.OSSC.HHZ. 2020-01-15T23:41:20.59 0.6 undecidable manual S 47 0.4083 50 -0.1 49
IV.CELB.HHZ. 2020-01-15T23:41:19.29 0.1 undecidable manual P 223 0.6754 50 0.49 85
IV.PII.HHE. 2020-01-15T23:41:16.13 0.3 undecidable manual P 335 0.527 50 -0.12 71
IV.CSNT.HHZ. 2020-01-15T23:41:14.25 0.1 undecidable manual P 55 0.402 50 0.13 97
IV.OSSC.HHZ. 2020-01-15T23:41:14.44 0.1 undecidable manual P 47 0.4083 50 0.21 96
IV.FROS.CHZ. 2020-01-15T23:41:14.57 0.3 undecidable manual S 98 0.2374 106 -0.35 72
IV.CASP.HHE. 2020-01-15T23:41:14.56 0.3 undecidable manual P 177 0.4551 50 -0.46 67
IV.FROS.CHZ. 2020-01-15T23:41:11.19 0.1 undecidable manual P 98 0.2374 106 0.29 97
IV.TRIF.CHZ. 2020-01-15T23:41:11.20 0.3 undecidable manual S 159 0.1394 117 -0.2 76
IV.MAGO.CHZ. 2020-01-15T23:41:10.70 0.1 undecidable manual S 282 0.1313 118 -0.43 96
IV.TRIF.CHZ. 2020-01-15T23:41:09.22 0.1 undecidable manual P 159 0.1394 117 0.35 98
IV.MAGO.CHZ. 2020-01-15T23:41:08.96 0.1 positive manual P 282 0.1313 118 0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MAGO.CHE. ML:1.7 0.00053674975 0.1536 AML other m 2020-01-15T23:41:10.87
IV.MAGO.CHN. ML:2 0.0009653368 0.0896 AML other m 2020-01-15T23:41:10.84
IV.TRIF.CHE. ML:1.5 0.0003199402 0.1024 AML other m 2020-01-15T23:41:11.97
IV.TRIF.CHN. ML:1.4 0.0002453401 0.1408 AML other m 2020-01-15T23:41:11.94
IV.FROS.CHE. ML:0.8 3.3847355E-5 0.0768 AML other m 2020-01-15T23:41:14.98
IV.FROS.CHN. ML:0.9 4.7170305E-5 0.1024 AML other m 2020-01-15T23:41:15.07
IV.CSNT.HHE. ML:0.7 1.3108432E-5 1.4848 AML other m 2020-01-15T23:41:29.46
IV.CSNT.HHN. ML:0.7 1.313358E-5 1.536 AML other m 2020-01-15T23:41:29.91
IV.OSSC.HNE. ML:1.7 0.00014940785 0.8064 AML other m 2020-01-15T23:41:27.01
IV.OSSC.HNN. ML:1.6 0.000131638675 0.4608 AML other m 2020-01-15T23:41:19.31
IV.OSSC.HHE. ML:0.7 1.7224735E-5 1.4848 AML other m 2020-01-15T23:41:27.75
IV.OSSC.HHN. ML:0.8 1.900564E-5 0.8448 AML other m 2020-01-15T23:41:20.47
IV.CELB.HHE. ML:1.4 3.756824E-5 0.064 AML other m 2020-01-15T23:41:33.06
IV.CELB.HHN. ML:1 1.52980245E-5 0.064 AML other m 2020-01-15T23:41:31.60
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