Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 10-11-2019 and time 18:00:34 (Italy) in region 6 km W Castelnuovo di Val di Cecina (PI)

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

  • 10-11-2019 17:00:34 (UTC)
  • 10-11-2019 18:00:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.23, 10.84 at 3 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.

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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
Pomarance PI 9 5897 8128
Monterotondo Marittimo GR 9 1371 9499
Monteverdi Marittimo PI 11 758 10257
Radicondoli SI 17 914 11171
Montieri GR 18 1204 12375
Sassetta LI 19 514 12889
Guardistallo PI 19 1234 14123
Casale Marittimo PI 20 1122 15245
Volterra PI 20 10519 25764
Castagneto Carducci LI 20 9010 34774
Montecatini Val di Cecina PI 20 1749 36523
Massa Marittima GR 20 8375 44898

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Siena (53903 inhabitants)
56 Km SE of Livorno (159219 inhabitants)
57 Km NW of Grosseto (82087 inhabitants)
65 Km SE of Pisa (89158 inhabitants)
65 Km SW of Scandicci (50609 inhabitants)
69 Km SW of Firenze (382808 inhabitants)
74 Km SE of Lucca (89046 inhabitants)
76 Km S of Prato (191150 inhabitants)
79 Km S of Pistoia (90315 inhabitants)
86 Km SE of Viareggio (62467 inhabitants)
89 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 1.8 2019-11-10
17:00:34		 43.23 10.84 3 2019-11-10
17:19:31		 Sala Sismica INGV-Roma 73774371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-10 17:00:34 ± 0.21
Latitude 43.23 ± 0.01
Longitude 10.84 ± 0.01
Depth (km) 3 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73774371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1070
Semi-minor axis of confidence ellipse (meter) 980
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41818
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.5
Num. used stations 19
Type of magnitude ML
Reference to an origin 73774371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-10 17:19:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LAV9.HNZ. 2019-11-10T17:01:43.42 3.0 undecidable manual Sn 2.38 0
IV.MF5.EHZ. 2019-11-10T17:01:42.54 3.0 undecidable manual Sg 8.69 0
SL.KOGS.BHZ. 2019-11-10T17:01:39.92 3.0 undecidable manual Pn 2.65 0
IV.RM33.HNZ. 2019-11-10T17:01:31.14 3.0 undecidable manual Sn -3.83 0
MN.TRI.HHZ. 2019-11-10T17:01:13.03 3.0 positive manual Pg 1.46 0
IV.APEC.HHZ. 2019-11-10T17:00:53.50 3.0 undecidable manual Pg 2.58 0
IV.OSSC.HHE. 2019-11-10T17:00:51.01 0.6 undecidable manual S 45 0.4182 94 0.07 50
IV.CSNT.HHE. 2019-11-10T17:00:50.35 0.6 undecidable manual S 53 0.4101 94 -0.26 48
IV.RIBO.EHZ.01 2019-11-10T17:00:47.66 0.3 undecidable manual S 151 0.3166 95 0.63 66
IV.QLNO.HHZ. 2019-11-10T17:00:45.72 3.0 undecidable manual Pn -0.35 0
IV.CSNT.HHE. 2019-11-10T17:00:44.01 0.1 undecidable manual P 53 0.4101 94 0.09 100
IV.FROS.CHZ. 2019-11-10T17:00:43.98 0.6 undecidable manual S 94 0.232 97 0.2 51
IV.OSSC.HHE. 2019-11-10T17:00:43.88 0.1 undecidable manual P 45 0.4182 94 -0.23 97
IV.RIBO.EHZ.01 2019-11-10T17:00:42.93 0.1 undecidable manual P 151 0.3166 95 1.08 73
IV.FROS.CHZ. 2019-11-10T17:00:40.02 0.3 negative manual P 94 0.232 97 0.04 78
IV.MAGO.CHZ. 2019-11-10T17:00:40.21 0.6 undecidable manual S 289 0.1394 101 -0.04 53
IV.MAGO.CHZ. 2019-11-10T17:00:38.12 0.3 positive manual P 289 0.1394 101 0.18 78
IV.TRIF.CHZ. 2019-11-10T17:00:38.64 0.3 undecidable manual S 157 0.1214 103 -0.94 61
IV.MSSA.HHZ. 2019-11-10T17:00:36.02 3.0 undecidable manual P -0.25 0
IV.TRIF.CHZ. 2019-11-10T17:00:36.78 0.1 undecidable manual P 157 0.1214 103 -0.77 87
IV.PII.HHZ. 2019-11-10T17:00:32.02 3.0 undecidable manual P -0.31 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PII.HHE. ML:1.1 2.51286E-5 0.3456 AML other m 2019-11-10T17:00:39.58
IV.PII.HHN. ML:1 1.977869E-5 0.5376 AML other m 2019-11-10T17:00:32.35
IV.MSSA.HHE. ML:2.2 6.273895E-5 1.1776 AML other m 2019-11-10T17:00:44.15
IV.MSSA.HHN. ML:2.4 0.000104851135 1.9456 AML other m 2019-11-10T17:00:44.81
IV.TRIF.CHE. ML:1.4 0.00036657145 0.256 AML other m 2019-11-10T17:00:41.82
IV.TRIF.CHN. ML:1.5 0.0004046441 0.1664 AML other m 2019-11-10T17:00:38.82
IV.MAGO.CHE. ML:1.3 0.00023062725 0.0768 AML other m 2019-11-10T17:00:41.29
IV.MAGO.CHN. ML:1.4 0.0002780951 0.1024 AML other m 2019-11-10T17:00:41.22
IV.FROS.CHE. ML:1.2 0.000105090865 0.1536 AML other m 2019-11-10T17:00:44.68
IV.FROS.CHN. ML:1.4 0.000145264 0.1536 AML other m 2019-11-10T17:00:45.08
IV.RIBO.EHE.01 ML:1.5 0.000127011 1.4208 AML other m 2019-11-10T17:01:05.62
IV.QLNO.HHN. ML:2.3 4.204586E-5 1.7664 AML other m 2019-11-10T17:01:21.64
IV.QLNO.HHE. ML:2.2 3.6495935E-5 1.2544 AML other m 2019-11-10T17:01:23.42
IV.APEC.HHN. ML:1.8 4.1588675E-5 0.0768 AML other m 2019-11-10T17:01:22.58
IV.APEC.HNE. ML:3.1 0.0008091795 0.9728 AML other m 2019-11-10T17:01:26.49
IV.APEC.HNN. ML:3.1 0.00078700655 0.896 AML other m 2019-11-10T17:01:05.82
IV.APEC.HHE. ML:1.9 5.0585155E-5 0.0768 AML other m 2019-11-10T17:01:22.63
MN.TRI.HHE. ML:2.4 1.9868895E-5 1.2416 AML other m 2019-11-10T17:02:12.26
MN.TRI.HHN. ML:2.4 2.231849E-5 1.6384 AML other m 2019-11-10T17:01:50.21
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