Earthquake with magnitude of ML 1.0 on date 07-01-2018 and time 03:40:12 (Italy) in region Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa)

A magnitude ML 1.0 earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on

  • 07-01-2018 02:40:12 (UTC)
  • 07-01-2018 03:40:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8490, 10.1870 at 7 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 6 62467 62467
Forte dei Marmi LU 13 7510 69977
Massarosa LU 13 22471 92448
Pietrasanta LU 13 24007 116455
Camaiore LU 14 32513 148968
Seravezza LU 17 13073 162041
Vecchiano PI 18 12189 174230
Stazzema LU 19 3193 177423
Montignoso MS 19 10323 187746

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of Viareggio (62467 inhabitants)
21 Km S of Massa (69479 inhabitants)
23 Km NW of Pisa (89158 inhabitants)
25 Km W of Lucca (89046 inhabitants)
27 Km S of Carrara (63133 inhabitants)
34 Km N of Livorno (159219 inhabitants)
41 Km SE of La Spezia (93959 inhabitants)
59 Km W of Pistoia (90315 inhabitants)
73 Km W of Prato (191150 inhabitants)
81 Km W of Scandicci (50609 inhabitants)
86 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 1.0 2018-01-07
02:40:12
43.849 10.1873 7 2019-04-24
14:49:16
Bollettino Sismico Italiano INGV 53575771
Reviewed
Rev100
ML 0.9 2018-01-07
02:40:13
43.8685 10.1932 8 2018-01-07
02:52:11
Sala Sismica INGV-Roma 53061541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-01-07 02:40:12 ± 0.27
Latitude 43.8490 ± 0.0081
Longitude 10.1873 ± 0.0150
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 53575771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1240
Semi-minor axis of confidence ellipse (meter) 466
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 1240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 239
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.22843
Epicentral distance of station farthest from the epicenter (degree) 0.45416
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 53575771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-18 13:37:36

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 53061541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-01-07 02:52:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2018-01-07T02:40:29.16 1.0 undecidable manual S 64 50.4162 50 -0.49 21
GU.SARM.EHZ. 2018-01-07T02:40:27.07 0.6 undecidable manual S 25 40.8258 50 -0.03 49
MN.VLC.HHZ. 2018-01-07T02:40:25.97 0.6 undecidable manual S 25 37.9287 100 -0.22 49
GU.EQUI.HHZ. 2018-01-07T02:40:24.82 0.3 undecidable manual S 356 35.2425 101 -0.46 69
GU.CARD.HHZ. 2018-01-07T02:40:23.77 0.6 undecidable manual S 50 30.6471 103 0.05 52
IV.PII.HHZ. 2018-01-07T02:40:22.84 0.6 undecidable manual S 117 30.4473 103 -0.82 38
GU.POPM.HHZ. 2018-01-07T02:40:22.66 0.6 undecidable manual P 64 50.4162 50 0.13 50
GU.MAIM.HHZ. 2018-01-07T02:40:21.95 0.6 undecidable manual S 73 25.3524 105 0.02 52
GU.SARM.EHZ. 2018-01-07T02:40:21.13 0.6 undecidable manual P 25 40.8258 50 0.07 50
GU.EQUI.HHZ. 2018-01-07T02:40:20.07 0.3 undecidable manual P 356 35.2425 101 0.06 77
MN.VLC.HHZ. 2018-01-07T02:40:20.72 0.3 undecidable manual P 25 37.9287 100 0.19 76
GU.CARD.HHZ. 2018-01-07T02:40:19.41 0.1 undecidable manual P 50 30.6471 103 0.3 100
GU.MAIM.HHZ. 2018-01-07T02:40:18.52 0.1 undecidable manual P 73 25.3524 105 0.44 98
IV.PII.HHZ. 2018-01-07T02:40:18.93 0.1 undecidable manual P 117 30.4473 103 -0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.MAIM.HHN. ML:0.8 0.000038953715 1.3808 AML other m 2018-01-07T02:40:22.80
GU.MAIM.HHE. ML:1.0 0.00005448812 1.8192 AML other m 2018-01-07T02:40:23.08
IV.PII.HHE. ML:0.8 0.000036028015 0.8192 AML other m 2018-01-07T02:40:23.22
IV.PII.HHN. ML:1.0 0.000045722615 1.24 AML other m 2018-01-07T02:40:22.95
GU.CARD.HHN. ML:1.2 0.00007844240499999999 0.1808 AML other m 2018-01-07T02:40:24.54
GU.CARD.HHE. ML:1.2 0.00006978330500000001 0.12 AML other m 2018-01-07T02:40:25.07
MN.VLC.HHE. ML:1.1 0.000046094184999999995 1.5008 AML other m 2018-01-07T02:40:25.82
MN.VLC.HNE. ML:1.1 0.00004570519 1.3808 AML other m 2018-01-07T02:40:26.64
MN.VLC.HHN. ML:0.8 0.000024371500000000002 0.9616 AML other m 2018-01-07T02:40:26.68
MN.VLC.HNN. ML:1.2 0.000067182125 1.12 AML other m 2018-01-07T02:40:27.94
GU.POPM.HHN. ML:0.8 0.00001656686 0.1408 AML other m 2018-01-07T02:40:30.45
GU.POPM.HHE. ML:0.8 0.000016614815 0.1792 AML other m 2018-01-07T02:40:30.65
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download