Earthquake with magnitude of ML 1.4 on date 19-08-2019 and time 19:59:10 (UTC) in region 3 km SW Pomarance (PI)

A magnitude ML 1.4 earthquake occured in region: 3 km SW Pomarance (PI), on

  • 19-08-2019 19:59:10 (UTC)
  • 19-08-2019 21:59:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.28, 10.85 at 5 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 3 5897 5897
Castelnuovo di Val di Cecina PI 10 2231 8128
Volterra PI 13 10519 18647
Montecatini Val di Cecina PI 15 1749 20396
Monterotondo Marittimo GR 15 1371 21767
Monteverdi Marittimo PI 16 758 22525
Radicondoli SI 16 914 23439
Casole d'Elsa SI 17 3897 27336
Guardistallo PI 18 1234 28570
Montescudaio PI 18 2144 30714
Casale Marittimo PI 19 1122 31836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Siena (53903 inhabitants)
53 Km SE of Livorno (159219 inhabitants)
60 Km SW of Scandicci (50609 inhabitants)
60 Km SE of Pisa (89158 inhabitants)
62 Km NW of Grosseto (82087 inhabitants)
64 Km SW of Firenze (382808 inhabitants)
69 Km SE of Lucca (89046 inhabitants)
70 Km SW of Prato (191150 inhabitants)
73 Km S of Pistoia (90315 inhabitants)
81 Km SE of Viareggio (62467 inhabitants)
86 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 1.4 2019-08-19
19:59:10
43.28 10.85 5 2019-08-19
20:09:57
Sala Sismica INGV-Roma 71633941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-19 19:59:10 ± 0.1
Latitude 43.28 ± 0.00
Longitude 10.85 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71633941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 590
Semi-minor axis of confidence ellipse (meter) 70
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 298
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 22
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
Epicentral distance of station farthest from the epicenter (degree) 0.76532
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 71633941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 20:09:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.TRI.HHZ. 2019-08-19T20:00:51.48 3.0 undecidable manual Sg 7.75 0
IV.IACL.HHZ. 2019-08-19T20:00:38.54 3.0 undecidable manual Pn 5.34 0
IV.PZUN.HHZ. 2019-08-19T20:00:32.38 3.0 negative manual Pg 11.37 0
IV.ORI.HHZ. 2019-08-19T20:00:29.76 3.0 undecidable manual Pn -1.61 0
IV.EUCT.HNZ. 2019-08-19T20:00:26.50 3.0 undecidable manual Sg 4.88 0
IV.MTMR.EHZ. 2019-08-19T20:00:24.57 3.0 undecidable manual Pg 12.5 0
IV.MBAL.EHZ. 2019-08-19T20:00:17.90 3.0 undecidable manual Sn -6.99 0
IV.LAV9.HHZ. 2019-08-19T20:00:13.62 3.0 undecidable manual Sn -2.05 0
IV.ARVD.HHZ. 2019-08-19T20:00:05.63 3.0 undecidable manual S 3.06 0
IV.MNTV.HNZ. 2019-08-19T20:00:05.63 3.0 undecidable manual Sn -5.9 0
IV.SSFR.HNZ. 2019-08-19T20:00:02.00 3.0 undecidable manual S 2.44 0
IV.FOSV.EHZ. 2019-08-19T19:59:55.44 3.0 undecidable manual S -3.48 0
IV.ARCI.HHZ. 2019-08-19T19:59:33.33 0.3 undecidable manual S 133 0.6286 50 0.16 92
IV.CRMI.HHZ. 2019-08-19T19:59:29.31 0.3 undecidable manual S 11 0.5216 50 -0.68 82
IV.CASP.HHZ. 2019-08-19T19:59:28.14 0.3 undecidable manual S 178 0.4919 50 -0.96 73
TV.SF04.EHZ. 2019-08-19T19:59:26.06 0.3 undecidable manual P 127 0.7428 50 0.44 85
GU.POPM.HHZ. 2019-08-19T19:59:26.44 0.3 undecidable manual P 355 0.7653 50 0.43 84
IV.OSSC.HHZ. 2019-08-19T19:59:25.07 0.6 undecidable manual S 50 0.3768 97 -0.24 64
TV.SF01.EHZ. 2019-08-19T19:59:25.52 0.3 undecidable manual P 132 0.7033 50 0.57 82
IV.CELB.HHZ. 2019-08-19T19:59:25.20 0.3 undecidable manual P 221 0.7096 50 0.15 91
IV.RUFI.EHZ. 2019-08-19T19:59:25.77 0.3 undecidable manual P 41 0.7338 50 0.31 87
IV.CSNT.HHZ. 2019-08-19T19:59:24.56 0.6 undecidable manual S 59 0.3741 97 -0.65 57
IV.ARCI.HHZ. 2019-08-19T19:59:23.82 0.6 undecidable manual P 133 0.6286 50 0.14 62
IV.CASP.HHZ. 2019-08-19T19:59:21.10 0.3 undecidable manual P 178 0.4919 50 -0.22 93
IV.CRMI.HHZ. 2019-08-19T19:59:21.91 0.3 undecidable manual P 11 0.5216 50 0.06 96
IV.CSNT.HHZ. 2019-08-19T19:59:19.04 0.3 undecidable manual P 59 0.3741 97 -0.04 99
IV.OSSC.HHZ. 2019-08-19T19:59:19.18 0.3 undecidable manual P 50 0.3768 97 0.04 99
IV.FROS.CHZ. 2019-08-19T19:59:19.83 0.3 undecidable manual S 108 0.2365 101 -0.14 100
IV.RIBO.EHZ.01 2019-08-19T19:59:18.64 0.3 undecidable manual P 156 0.3633 97 -0.21 96
IV.TRIF.CHZ. 2019-08-19T19:59:17.30 0.3 undecidable manual S 166 0.1727 104 -0.27 99
IV.FROS.CHZ. 2019-08-19T19:59:16.42 0.3 undecidable manual P 108 0.2365 101 0.37 95
IV.MAGO.CHZ. 2019-08-19T19:59:16.05 0.3 undecidable manual S 266 0.1385 108 -0.25 100
IV.TRIF.CHZ. 2019-08-19T19:59:14.95 0.3 undecidable manual P 166 0.1727 104 0.28 98
IV.MAGO.CHZ. 2019-08-19T19:59:14.19 0.3 undecidable manual P 266 0.1385 108 0.25 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MAGO.CHE. ML:2.3 0.00217 0.14 AML other m 2019-08-19T19:59:16.09
IV.MAGO.CHN. ML:2.1 0.00143 0.1 AML other m 2019-08-19T19:59:16.90
IV.TRIF.CHN. ML:2 0.0009845 0.14 AML other m 2019-08-19T19:59:18.14
IV.CSNT.HHE. ML:0 5.159121E-5 0.1536 AML other m 2019-08-19T19:59:24.96
IV.OSSC.HHE. ML:0 5.6157475E-5 0.2304 AML other m 2019-08-19T19:59:25.60
IV.CSNT.HHN. ML:0 5.400273E-5 0.1664 AML other m 2019-08-19T19:59:25.03
IV.OSSC.HHN. ML:0 6.354953E-5 0.256 AML other m 2019-08-19T19:59:25.48
IV.ARCI.HHN. ML:0 1.63412515E-5 0.1024 AML other m 2019-08-19T19:59:33.50
IV.CRMI.HHN. ML:0 1.7094395E-5 0.2816 AML other m 2019-08-19T19:59:29.84
IV.CRMI.HHE. ML:0 1.444682E-5 0.2048 AML other m 2019-08-19T19:59:30.05
IV.CASP.HHE. ML:1.2 3.725E-5 0.24 AML other m 2019-08-19T19:59:32.18
IV.CASP.HHN. ML:0 4.27E-5 0.12 AML other m 2019-08-19T19:59:32.24
IV.ARCI.HHE. ML:0 1.444012E-5 0.1792 AML other m 2019-08-19T19:59:34.32
IV.TRIF.CHE. ML:2.1 0.001052825 0.0896 AML other m 2019-08-19T19:59:18.16
IV.FROS.CHE. ML:1.6 0.00021962635 0.384 AML other m 2019-08-19T19:59:23.17
IV.FROS.CHN. ML:1.7 0.0002684264 0.128 AML other m 2019-08-19T19:59:20.58
IV.RIBO.EHE.01 ML:1.5 0.000103912615 0.1408 AML other m 2019-08-19T19:59:25.22
IV.CELB.HHN. ML:1.8 9.444979E-5 0.1024 AML other m 2019-08-19T19:59:36.99
IV.CELB.HHE. ML:2 0.000142054 0.0768 AML other m 2019-08-19T19:59:36.12
GU.POPM.HHN. ML:1.7 6.0062875E-5 0.1408 AML other m 2019-08-19T19:59:37.66
GU.POPM.HHE. ML:1.6 5.3561525E-5 0.1664 AML other m 2019-08-19T19:59:38.59
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