Earthquake with magnitude of ML 1.4 on date 10-02-2019 and time 04:37:40 (Italy) in region 6 km W Pomarance (PI)

A magnitude ML 1.4 earthquake occured in region: 6 km W Pomarance (PI), on

  • 10-02-2019 03:37:40 (UTC)
  • 10-02-2019 04:37:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.28, 10.81 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
Pomarance PI 6 5897 5897
Castelnuovo di Val di Cecina PI 11 2231 8128
Montecatini Val di Cecina PI 13 1749 9877
Monteverdi Marittimo PI 14 758 10635
Volterra PI 14 10519 21154
Guardistallo PI 15 1234 22388
Monterotondo Marittimo GR 15 1371 23759
Montescudaio PI 16 2144 25903
Casale Marittimo PI 16 1122 27025
Bibbona LI 17 3175 30200
Radicondoli SI 19 914 31114
Riparbella PI 20 1603 32717
Casole d'Elsa SI 20 3897 36614

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Siena (53903 inhabitants)
51 Km SE of Livorno (159219 inhabitants)
59 Km SE of Pisa (89158 inhabitants)
61 Km SW of Scandicci (50609 inhabitants)
63 Km NW of Grosseto (82087 inhabitants)
65 Km SW of Firenze (382808 inhabitants)
68 Km SE of Lucca (89046 inhabitants)
71 Km SW of Prato (191150 inhabitants)
73 Km S of Pistoia (90315 inhabitants)
79 Km SE of Viareggio (62467 inhabitants)
89 Km W of Arezzo (99543 inhabitants)
100 Km SE of Massa (69479 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 1.4 2019-02-10
03:37:40
43.28 10.81 9 2019-02-10
03:47:40
Sala Sismica INGV-Roma 65364051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-10 03:37:40 ± 0.15
Latitude 43.28 ± 0.01
Longitude 10.81 ± 0.01
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 65364051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 851
Semi-minor axis of confidence ellipse (meter) 546
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 850
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.69248
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 65364051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-10 03:47:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSP9.EHZ. 2019-02-10T03:38:09.88 3.0 undecidable manual P 0
IV.CELB.HHZ. 2019-02-10T03:38:04.04 0.3 undecidable manual S 220 0.6925 50 -0.19 67
IV.PII.HHZ. 2019-02-10T03:37:58.03 0.3 undecidable manual S 335 0.4865 50 -0.12 71
IV.OSSC.HHE. 2019-02-10T03:37:55.03 0.3 undecidable manual S 52 0.3975 50 -0.46 67
IV.CELB.HHZ. 2019-02-10T03:37:55.21 0.1 undecidable manual P 220 0.6925 50 0.88 71
IV.RIBO.EHZ.01 2019-02-10T03:37:54.24 0.1 undecidable manual S 153 0.3732 50 -0.55 87
IV.FROS.CHZ. 2019-02-10T03:37:51.38 0.1 undecidable manual S 106 0.2608 107 0.06 100
IV.PII.HHZ. 2019-02-10T03:37:51.06 0.3 undecidable manual P 335 0.4865 50 0.24 69
IV.FIR.HHZ. 2019-02-10T03:37:50.59 3.0 undecidable manual P -2.82 0
IV.RIBO.EHZ.01 2019-02-10T03:37:49.39 0.1 undecidable manual P 153 0.3732 50 0.51 89
IV.OSSC.HHE. 2019-02-10T03:37:48.98 0.3 undecidable manual P 52 0.3975 50 -0.3 69
IV.FROS.CHZ. 2019-02-10T03:37:47.25 0.1 negative manual P 106 0.2608 107 0.38 93
IV.TRIF.CHZ. 2019-02-10T03:37:47.90 0.1 undecidable manual S 158 0.179 114 -0.48 93
IV.TRIF.CHZ. 2019-02-10T03:37:45.49 0.1 undecidable manual P 158 0.179 114 0.31 96
IV.MAGO.CHZ. 2019-02-10T03:37:45.62 0.1 undecidable manual S 266 0.1124 126 -0.53 92
IV.MAGO.CHZ. 2019-02-10T03:37:44.08 0.1 negative manual P 266 0.1124 126 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MAGO.CHE. ML:1.6 0.00051051345 0.072 AML other m 2019-02-10T03:37:45.68
IV.MAGO.CHN. ML:1.5 0.0003705567 0.08 AML other m 2019-02-10T03:37:45.80
IV.TRIF.CHE. ML:1.2 0.00013227115 0.112 AML other m 2019-02-10T03:37:48.86
IV.TRIF.CHN. ML:1.2 0.00012411705 0.088 AML other m 2019-02-10T03:37:48.74
IV.RIBO.EHE.01 ML:1.3 6.147777E-5 1.4 AML other m 2019-02-10T03:37:53.69
IV.PII.HHN. ML:1.2 3.6363215E-5 0.32 AML other m 2019-02-10T03:38:08.02
IV.CELB.HHN. ML:1.5 4.5111885E-5 0.0592 AML other m 2019-02-10T03:38:05.69
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