Earthquake with magnitude of ML 1.4 on date 12-02-2020 and time 23:11:49 (UTC) in region Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa)

A magnitude ML 1.4 earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on

  • 12-02-2020 23:11:49 (UTC)
  • 13-02-2020 00:11:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.77, 10.24 at 8 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
Viareggio LU 11 62467 62467
Vecchiano PI 12 12189 74656
Massarosa LU 14 22471 97127
Pisa PI 15 89158 186285
San Giuliano Terme PI 17 31399 217684
Camaiore LU 20 32513 250197

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Viareggio (62467 inhabitants)
15 Km W of Pisa (89158 inhabitants)
23 Km W of Lucca (89046 inhabitants)
25 Km N of Livorno (159219 inhabitants)
31 Km S of Massa (69479 inhabitants)
36 Km SE of Carrara (63133 inhabitants)
50 Km SE of La Spezia (93959 inhabitants)
58 Km W of Pistoia (90315 inhabitants)
70 Km W of Prato (191150 inhabitants)
76 Km W of Scandicci (50609 inhabitants)
82 Km W of Firenze (382808 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 1.4 2020-02-12
23:11:49
43.77 10.24 8 2020-07-18
21:08:31
Bollettino Sismico Italiano INGV 77980431
Reviewed
Rev100
ML 1.5 2020-02-12
23:11:49
43.77 10.23 8 2020-02-12
23:21:35
Sala Sismica INGV-Roma 76468361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-12 23:11:49 ± 0.18
Latitude 43.77 ± 0.01
Longitude 10.24 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77980431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 544
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.01983
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 77980431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-07 11:09:01

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 76468361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-12 23:21:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2020-02-12T23:13:13.84 3.0 undecidable manual Sg 2.68 0
IV.LRP.EHZ. 2020-02-12T23:12:45.15 3.0 undecidable manual Pn 3 0
IV.SARZ.HHZ. 2020-02-12T23:12:19.11 3.0 positive manual P 3.28 0
IV.MPPT.EHZ. 2020-02-12T23:12:11.27 1.0 undecidable manual S 73 0.6439 50 -0.24 22
GU.GSCL.HHZ. 2020-02-12T23:12:11.57 0.3 undecidable manual S 23 0.6349 50 0.31 65
IV.CRMI.HHZ. 2020-02-12T23:12:08.28 0.6 undecidable manual S 87 0.5369 50 -0.06 46
IV.CELB.HHE. 2020-02-12T23:12:08.05 0.1 undecidable manual P 181 1.0198 50 -0.56 75
IV.FROS.CHE. 2020-02-12T23:12:06.24 0.3 undecidable manual P 130 0.8687 50 0.23 63
IV.CSNT.HHZ. 2020-02-12T23:12:05.56 0.3 undecidable manual P 111 0.8166 50 0.44 61
GU.SARM.EHE. 2020-02-12T23:12:05.04 0.1 undecidable manual S 16 0.4326 50 -0.23 92
MN.VLC.HHZ. 2020-02-12T23:12:04.21 0.3 undecidable manual S 15 0.4065 50 -0.27 69
IV.OSSC.HNE. 2020-02-12T23:12:04.94 0.3 undecidable manual P 108 0.7698 50 0.63 58
IV.TRIF.CHZ. 2020-02-12T23:12:04.14 0.6 undecidable manual P 143 0.8112 50 -0.89 34
IV.BDI.HHZ. 2020-02-12T23:12:04.18 0.3 undecidable manual S 41 0.3921 50 0.11 71
GU.EQUI.HHE. 2020-02-12T23:12:03.98 0.6 undecidable manual S 351 0.4029 50 -0.4 44
GU.GSCL.HHZ. 2020-02-12T23:12:02.47 0.1 undecidable manual P 23 0.6349 50 0.45 84
IV.MPPT.EHZ. 2020-02-12T23:12:02.46 0.6 undecidable manual P 73 0.6439 50 0.3 43
GU.CARD.HHZ. 2020-02-12T23:12:01.09 0.3 undecidable manual S 34 0.313 50 -0.63 63
IV.MAGO.CHZ. 2020-02-12T23:12:01.06 0.3 undecidable manual P 148 0.5801 50 -0.02 70
IV.CRMI.HHZ. 2020-02-12T23:12:00.74 0.1 undecidable manual P 87 0.5369 50 0.41 86
GU.POPM.HHZ. 2020-02-12T23:11:59.20 0.1 undecidable manual P 53 0.4667 50 0.08 94
GU.EQUI.HHE. 2020-02-12T23:11:58.08 0.3 undecidable manual P 351 0.4029 50 0.03 72
IV.PLMA.HHE. 2020-02-12T23:11:58.08 1.0 undecidable manual P 316 0.3948 50 0.18 23
GU.MAIM.HHE. 2020-02-12T23:11:58.89 0.3 undecidable manual S 51 0.2356 108 -0.02 75
MN.VLC.HHZ. 2020-02-12T23:11:58.18 0.3 undecidable manual P 15 0.4065 50 0.08 71
GU.SARM.EHE. 2020-02-12T23:11:58.71 0.1 undecidable manual P 16 0.4326 50 0.16 93
IV.PII.HHZ. 2020-02-12T23:11:57.55 0.3 undecidable manual S 102 0.2131 110 -0.56 66
IV.BDI.HHZ. 2020-02-12T23:11:57.80 0.1 undecidable manual P 41 0.3921 50 -0.07 96
GU.CARD.HHZ. 2020-02-12T23:11:56.41 0.1 positive manual P 34 0.313 50 -0.1 96
GU.MAIM.HHE. 2020-02-12T23:11:55.02 0.3 undecidable manual P 51 0.2356 108 0.14 73
IV.PII.HHZ. 2020-02-12T23:11:54.44 0.1 undecidable manual P 102 0.2131 110 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PII.HHN. ML:1.6 0.000246859 0.1152 AML other m 2020-02-12T23:11:57.67
IV.PII.HHE. ML:1.7 0.00032016335 0.2304 AML other m 2020-02-12T23:11:57.82
GU.CARD.HHN. ML:2 0.00040883635 0.1152 AML other m 2020-02-12T23:12:01.90
GU.CARD.HHE. ML:1.8 0.00025122195 0.128 AML other m 2020-02-12T23:12:01.93
IV.BDI.HHN. ML:1.4 7.8196555E-5 0.1408 AML other m 2020-02-12T23:12:04.33
MN.VLC.HHE. ML:1 3.1858405E-5 0.1536 AML other m 2020-02-12T23:12:04.47
MN.VLC.HHN. ML:1.1 3.913141E-5 0.1792 AML other m 2020-02-12T23:12:04.72
IV.BDI.HHE. ML:1.2 5.7240875E-5 0.3072 AML other m 2020-02-12T23:12:08.19
GU.POPM.HHN. ML:1.7 0.00012081835 0.1536 AML other m 2020-02-12T23:12:10.62
IV.MAGO.CHN. ML:1.3 3.722001535E-5 0.1152 AML other m 2020-02-12T23:12:10.78
GU.POPM.HHE. ML:1.6 0.00010014633 0.192 AML other m 2020-02-12T23:12:11.07
IV.BDI.HNE. ML:1.4 8.73374E-5 0.576 AML other m 2020-02-12T23:12:11.72
IV.MPPT.EHE. ML:1.4 3.846479E-5 0.2944 AML other m 2020-02-12T23:12:14.58
IV.MPPT.EHN. ML:1.2 2.55569765E-5 0.32 AML other m 2020-02-12T23:12:15.01
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