Earthquake with magnitude of ML 1.8 on date 21-11-2019 and time 01:29:03 (Italy) in region 5 km SE Castelnuovo di Val di Cecina (PI)

A magnitude ML 1.8 earthquake occured in region: 5 km SE Castelnuovo di Val di Cecina (PI), on

  • 21-11-2019 00:29:03 (UTC)
  • 21-11-2019 01:29:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.17, 10.94 at 7 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 5 2231 2231
Monterotondo Marittimo GR 7 1371 3602
Montieri GR 8 1204 4806
Chiusdino SI 13 1903 6709
Radicondoli SI 14 914 7623
Massa Marittima GR 14 8375 15998
Pomarance PI 16 5897 21895
Monteverdi Marittimo PI 18 758 22653

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km W of Siena (53903 inhabitants)
48 Km NW of Grosseto (82087 inhabitants)
66 Km SE of Livorno (159219 inhabitants)
69 Km SW of Scandicci (50609 inhabitants)
72 Km SW of Firenze (382808 inhabitants)
75 Km SE of Pisa (89158 inhabitants)
80 Km S of Prato (191150 inhabitants)
83 Km SE of Lucca (89046 inhabitants)
84 Km W of Arezzo (99543 inhabitants)
85 Km S of Pistoia (90315 inhabitants)
95 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 2019-11-21
00:29:03
43.17 10.94 7 2019-11-21
00:45:12
Sala Sismica INGV-Roma 73940141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-21 00:29:03 ± 0.11
Latitude 43.17 ± 0.01
Longitude 10.94 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73940141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 581
Semi-minor axis of confidence ellipse (meter) 397
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 343
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67809
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 73940141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-21 00:45:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTMR.EHZ. 2019-11-21T00:30:49.22 3.0 undecidable manual Sn -2.6 0
IV.VITU.HHZ. 2019-11-21T00:30:47.62 3.0 undecidable manual Sg 5.19 0
SL.LJU.BHZ. 2019-11-21T00:30:15.67 3.0 undecidable manual Pg 10.83 0
GU.PZZ.HHZ. 2019-11-21T00:30:03.02 3.0 undecidable manual Pg 10.32 0
GU.RRL.HHZ. 2019-11-21T00:29:58.81 3.0 negative manual Pn 0.7 0
IV.LRP.EHZ. 2019-11-21T00:29:48.30 3.0 undecidable manual Pg 1.4 0
IV.NRCA.HNZ. 2019-11-21T00:29:35.40 3.0 positive manual Pg 0.2 0
IV.CELB.HHZ. 2019-11-21T00:29:27.01 0.1 undecidable manual S 232 0.6781 50 0.26 86
TV.SF04.EHZ. 2019-11-21T00:29:25.45 0.1 undecidable manual S 122 0.6259 50 0.24 87
IV.PII.HHZ. 2019-11-21T00:29:25.06 0.1 undecidable manual S 332 0.6277 50 -0.22 88
TV.SF01.EHZ. 2019-11-21T00:29:24.27 0.1 undecidable manual S 128 0.581 50 0.38 85
IV.ARCI.HHZ. 2019-11-21T00:29:21.28 0.1 undecidable manual S 129 0.5063 50 -0.38 87
IV.OSSC.HHZ. 2019-11-21T00:29:19.23 0.1 undecidable manual S 32 0.42 50 0.11 93
IV.CELB.HHZ. 2019-11-21T00:29:17.56 0.6 positive manual P 232 0.6781 50 0.74 37
IV.CSNT.HHZ. 2019-11-21T00:29:17.72 0.1 undecidable manual S 40 0.3984 50 -0.76 78
IV.RIBO.EHE.01 2019-11-21T00:29:17.31 0.1 undecidable manual P 0.2338 8.66 0
IV.PII.HHZ. 2019-11-21T00:29:16.62 0.6 negative manual P 332 0.6277 50 0.65 39
IV.CASP.HHZ. 2019-11-21T00:29:16.85 0.3 undecidable manual S 188 0.3813 50 -1.12 50
TV.SF04.EHZ. 2019-11-21T00:29:16.57 0.3 positive manual P 122 0.6259 50 0.63 59
TV.SF01.EHZ. 2019-11-21T00:29:15.58 1.0 undecidable manual P 128 0.581 50 0.4 21
IV.ARCI.HHZ. 2019-11-21T00:29:14.14 1.0 undecidable manual P 129 0.5063 50 0.25 22
IV.OSSC.HHZ. 2019-11-21T00:29:12.48 0.6 positive manual P 32 0.42 50 0.06 47
IV.CSNT.HHZ. 2019-11-21T00:29:12.08 0.6 positive manual P 40 0.3984 50 0.03 48
IV.MAGO.CHZ. 2019-11-21T00:29:12.32 0.1 undecidable manual S 297 0.2275 105 -0.02 99
IV.CASP.HHZ. 2019-11-21T00:29:11.48 0.3 negative manual P 188 0.3813 50 -0.28 68
IV.FROS.CHZ. 2019-11-21T00:29:09.90 0.1 undecidable manual S 76 0.1655 110 -0.18 97
IV.MAGO.CHZ. 2019-11-21T00:29:08.70 1.0 negative manual P 297 0.2275 105 0.19 24
IV.FROS.CHZ. 2019-11-21T00:29:07.51 0.1 undecidable manual P 76 0.1655 110 0.31 94
IV.TRIF.CHZ. 2019-11-21T00:29:06.19 0.1 undecidable manual S 204 0.0594 136 -0.36 95
IV.TRIF.CHZ. 2019-11-21T00:29:05.28 0.1 positive manual P 204 0.0594 136 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHE. ML:0 0.006855 0.22 AML other m 2019-11-21T00:29:07.15
IV.TRIF.CHN. ML:0 0.00907 0.4 AML other m 2019-11-21T00:29:08.32
IV.FROS.CHE. ML:2 0.0009375 0.42 AML other m 2019-11-21T00:29:11.42
IV.FROS.CHN. ML:2.2 0.00132 1.34 AML other m 2019-11-21T00:29:11.90
IV.MAGO.CHE. ML:1.9 0.000474 0.4 AML other m 2019-11-21T00:29:12.65
IV.MAGO.CHN. ML:1.8 0.0003545 1.32 AML other m 2019-11-21T00:29:15.83
IV.CASP.HHN. ML:1.9 0.000241 0.26 AML other m 2019-11-21T00:29:17.49
IV.CASP.HHE. ML:1.6 0.0001245 0.82 AML other m 2019-11-21T00:29:18.78
IV.CSNT.HHN. ML:1.4 8.205E-5 0.64 AML other m 2019-11-21T00:29:18.61
IV.CSNT.HHE. ML:1.4 7.455E-5 0.22 AML other m 2019-11-21T00:29:18.82
IV.OSSC.HHN. ML:1.5 0.0001014 0.28 AML other m 2019-11-21T00:29:19.42
IV.OSSC.HHE. ML:1.6 0.0001165 0.88 AML other m 2019-11-21T00:29:19.18
IV.ARCI.HHN. ML:1.7 0.00011515 1.76 AML other m 2019-11-21T00:29:22.01
IV.ARCI.HHE. ML:1.6 0.0001015 0.18 AML other m 2019-11-21T00:29:22.28
TV.SF01.EHN. ML:2 0.0001775 0.84 AML other m 2019-11-21T00:29:24.53
TV.SF01.EHE. ML:2.1 0.0002485 0.2 AML other m 2019-11-21T00:29:24.81
TV.SF04.EHE. ML:2.2 0.0003035 1.74 AML other m 2019-11-21T00:29:26.10
TV.SF04.EHN. ML:2.1 0.0001975 1.02 AML other m 2019-11-21T00:29:26.13
IV.CELB.HHN. ML:1.7 7.515E-5 1.18 AML other m 2019-11-21T00:29:27.19
IV.CELB.HHE. ML:1.7 8.23E-5 1.32 AML other m 2019-11-21T00:29:30.66
IV.VITU.HHE. ML:3.1 8.46E-5 0.6 AML other m 2019-11-21T00:30:52.46
IV.VITU.HHN. ML:3 7.125E-5 0.56 AML other m 2019-11-21T00:30:55.12
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