Earthquake with magnitude of ML 1.8 on date 14-09-2019 and time 02:45:23 (Italy) in region Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa)

A magnitude ML 1.8 earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on

  • 14-09-2019 00:45:23 (UTC)
  • 14-09-2019 02:45:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7080, 10.2510 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Pisa PI 12 89158 89158
Vecchiano PI 14 12189 101347
San Giuliano Terme PI 17 31399 132746
Livorno LI 18 159219 291965
Viareggio LU 18 62467 354432
Massarosa LU 20 22471 376903

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km W of Pisa (89158 inhabitants)
18 Km N of Livorno (159219 inhabitants)
18 Km S of Viareggio (62467 inhabitants)
25 Km SW of Lucca (89046 inhabitants)
38 Km S of Massa (69479 inhabitants)
43 Km S of Carrara (63133 inhabitants)
56 Km SE of La Spezia (93959 inhabitants)
59 Km W of Pistoia (90315 inhabitants)
71 Km W of Prato (191150 inhabitants)
75 Km W of Scandicci (50609 inhabitants)
81 Km W of Firenze (382808 inhabitants)
97 Km W of Siena (53903 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.8 2019-09-14
00:45:23
43.7075 10.2512 14 2020-02-28
16:41:59
Bollettino Sismico Italiano INGV 73512431
Reviewed
Rev100
ML 1.8 2019-09-14
00:45:23
43.7272 10.2518 10 2019-09-14
00:57:03
Sala Sismica INGV-Roma 72379641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-14 00:45:23 ± 0.14
Latitude 43.7075 ± 0.0063
Longitude 10.2512 ± 0.0112
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73512431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 815
Semi-minor axis of confidence ellipse (meter) 397
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.19875
Epicentral distance of station farthest from the epicenter (degree) 1.47489
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 13
Type of magnitude ML
Reference to an origin 72379641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-14 00:57:03

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 73512431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-29 11:22:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RD.PGF.BHZ. 2019-09-14T00:45:49.37 0.6 undecidable manual P 219 163.7139 91 -0.83 28
GU.GSCL.HHZ. 2019-09-14T00:45:46.85 0.6 undecidable manual S 21 76.2681 92 0.48 41
IV.CELB.HHE. 2019-09-14T00:45:41.15 0.6 undecidable manual P 182 106.6155 92 -0.26 40
GU.POPM.HHZ. 2019-09-14T00:45:40.78 0.3 undecidable manual S 47 55.1004 94 0.04 71
GU.SARM.EHN. 2019-09-14T00:45:40.40 0.3 undecidable manual S 13 54.2013 94 -0.09 70
IV.PLMA.HHZ. 2019-09-14T00:45:39.01 0.6 undecidable manual S 320 49.5171 94 -0.24 46
GU.EQUI.HHN. 2019-09-14T00:45:39.48 0.6 undecidable manual S 351 51.5151 94 -0.29 45
GU.GRAM.HHZ. 2019-09-14T00:45:38.93 0.3 undecidable manual P 350 88.245 92 0.36 62
IV.BDI.HHZ. 2019-09-14T00:45:38.79 0.6 undecidable manual S 35 48.1185 94 -0.08 47
GU.GSCL.HHZ. 2019-09-14T00:45:37.44 0.3 undecidable manual P 21 76.2681 92 0.72 57
GU.CARD.HHZ. 2019-09-14T00:45:36.25 0.6 undecidable manual S 28 39.8268 96 -0.44 45
IV.MAGO.CHE. 2019-09-14T00:45:34.42 0.6 undecidable manual P 146 58.1973 93 0.47 44
GU.SARM.EHN. 2019-09-14T00:45:33.45 0.3 undecidable manual P 13 54.2013 94 0.12 70
GU.POPM.HHZ. 2019-09-14T00:45:33.69 0.3 undecidable manual P 47 55.1004 94 0.22 68
IV.BDI.HHZ. 2019-09-14T00:45:32.46 0.6 undecidable manual P 35 48.1185 94 0.07 48
GU.EQUI.HHN. 2019-09-14T00:45:32.51 0.6 undecidable manual P 351 51.5151 94 -0.4 44
IV.PLMA.HHZ. 2019-09-14T00:45:32.70 0.6 undecidable manual P 320 49.5171 94 0.09 47
IV.PII.HHZ. 2019-09-14T00:45:31.76 0.6 undecidable manual S 86 22.0668 105 -0.22 47
GU.CARD.HHZ. 2019-09-14T00:45:30.83 0.1 undecidable manual P 28 39.8268 96 -0.3 91
IV.PII.HHZ. 2019-09-14T00:45:28.51 0.1 positive manual P 86 22.0668 105 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHE. ML:0.0 0.00011106721 0.26 AML other m 2019-09-14T00:45:49.31
GU.GSCL.HHN. ML:0.0 0.000086237955 0.5 AML other m 2019-09-14T00:45:49.54
IV.PII.HHE. ML:1.6 0.00027309335000000003 0.26 AML other m 2019-09-14T00:45:32.18
IV.PII.HHN. ML:1.8 0.0003957225 0.38 AML other m 2019-09-14T00:45:32.17
GU.CARD.HHN. ML:2.1 0.0003885754 0.14 AML other m 2019-09-14T00:45:36.92
GU.CARD.HHE. ML:2.0 0.00029765570000000004 0.12 AML other m 2019-09-14T00:45:41.54
IV.BDI.HNN. ML:1.6 0.000121276235 0.25 AML other m 2019-09-14T00:45:43.34
IV.BDI.HHN. ML:1.6 0.000102903875 0.22 AML other m 2019-09-14T00:45:39.43
IV.BDI.HHE. ML:1.8 0.00015206534999999999 0.14 AML other m 2019-09-14T00:45:43.29
IV.BDI.HNE. ML:1.8 0.00015967585500000002 0.28 AML other m 2019-09-14T00:45:50.31
GU.POPM.HHE. ML:1.8 0.0001530355 0.18 AML other m 2019-09-14T00:45:44.79
GU.POPM.HHN. ML:1.8 0.00015621859999999998 0.12 AML other m 2019-09-14T00:45:42.79
GU.GRAM.HHE. ML:1.9 0.00008869386 0.32 AML other m 2019-09-14T00:45:53.30
GU.GRAM.HHN. ML:1.8 0.00008116646 0.36 AML other m 2019-09-14T00:45:52.66
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download