Earthquake with magnitude of ML 1.7 on date 06-02-2022 and time 03:38:40 (Italy) in region 9 km S Viareggio (LU)

A magnitude ML 1.7 earthquake occured in region: 9 km S Viareggio (LU), on

  • 06-02-2022 02:38:40 (UTC)
  • 06-02-2022 03:38:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7920, 10.2740 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 9 62467 62467
Vecchiano PI 9 12189 74656
Massarosa LU 10 22471 97127
Pisa PI 13 89158 186285
San Giuliano Terme PI 14 31399 217684
Camaiore LU 17 32513 250197
Pietrasanta LU 19 24007 274204
Lucca LU 19 89046 363250

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Viareggio (62467 inhabitants)
13 Km NW of Pisa (89158 inhabitants)
19 Km W of Lucca (89046 inhabitants)
27 Km N of Livorno (159219 inhabitants)
29 Km SE of Massa (69479 inhabitants)
35 Km SE of Carrara (63133 inhabitants)
50 Km SE of La Spezia (93959 inhabitants)
54 Km W of Pistoia (90315 inhabitants)
67 Km W of Prato (191150 inhabitants)
73 Km W of Scandicci (50609 inhabitants)
79 Km W of Firenze (382808 inhabitants)
100 Km NW 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 1.7 2022-02-06
02:38:40
43.7918 10.2735 8 2022-07-08
12:33:50
Bollettino Sismico Italiano INGV 103851171
Reviewed
Rev100
ML 1.7 2022-02-06
02:38:40
43.7852 10.2797 8 2022-02-06
02:48:11
Sala Sismica INGV-Roma 100641271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-06 02:38:40 ± 0.18
Latitude 43.7918 ± 0.0063
Longitude 10.2735 ± 0.0112
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 103851171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 757
Semi-minor axis of confidence ellipse (meter) 622
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.55133
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 103851171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-27 14:45:40

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 100641271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-06 02:48:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HNZ. 2022-02-06T02:40:20.71 3.0 undecidable manual Sg 7.69 0
MN.TRI.HHZ. 2022-02-06T02:39:31.34 3.0 negative manual Pn 0.48 0
IV.MNTV.EHZ. 2022-02-06T02:39:28.74 3.0 undecidable manual S 0.51 0
IV.LAV9.HHZ. 2022-02-06T02:39:22.70 3.0 undecidable manual Pn -2.19 0
RD.PGF.BHE. 2022-02-06T02:39:07.91 1.0 undecidable manual P 217 172.1943 50 -1.2 12
IV.OSSC.HHZ. 2022-02-06T02:39:06.16 0.6 undecidable manual S 111 83.5497 50 -0.08 44
IV.ERBM.EHE. 2022-02-06T02:39:03.25 0.6 undecidable manual S 9 70.4739 50 0.49 42
GU.GSCL.HHZ. 2022-02-06T02:39:02.09 0.6 undecidable manual S 22 66.8775 50 0.3 44
IV.CASP.HHZ. 2022-02-06T02:39:00.66 0.6 undecidable manual P 157 120.8901 50 -0.54 37
IV.CELB.HHZ. 2022-02-06T02:38:59.89 0.3 undecidable manual P 183 116.0949 50 -0.56 56
IV.FROS.CHE. 2022-02-06T02:38:58.04 0.6 undecidable manual P 132 96.0261 50 0.68 37
IV.CRMI.HHZ. 2022-02-06T02:38:58.57 0.6 undecidable manual S 89 56.499 50 -0.46 43
GU.POPM.HHZ. 2022-02-06T02:38:56.55 0.6 undecidable manual S 54 47.7189 50 -0.14 47
IV.TRIF.CHZ. 2022-02-06T02:38:56.82 0.6 undecidable manual P 146 90.5427 50 0.29 42
GU.GRAM.HHZ. 2022-02-06T02:38:55.35 0.1 undecidable manual P 348 79.2651 50 0.57 79
GU.SARM.EHE. 2022-02-06T02:38:55.02 0.6 undecidable manual S 13 44.7219 50 -0.85 38
IV.MSSA.HHZ. 2022-02-06T02:38:55.54 0.1 undecidable manual P 314 83.7495 50 0.06 89
IV.FNVD.HHE. 2022-02-06T02:38:55.44 0.3 undecidable manual P 58 79.5648 50 0.61 59
IV.OSSC.HHZ. 2022-02-06T02:38:55.91 0.3 undecidable manual P 111 83.5497 50 0.47 61
GU.EQUI.HHZ. 2022-02-06T02:38:54.02 0.6 undecidable manual S 347 42.624 50 -1.3 31
IV.ERBM.EHE. 2022-02-06T02:38:54.23 0.1 undecidable manual P 9 70.4739 50 0.8 74
IV.BDI.HHZ. 2022-02-06T02:38:53.80 0.6 undecidable manual S 40 39.5271 50 -0.71 40
GU.GSCL.HHZ. 2022-02-06T02:38:53.77 0.1 undecidable manual P 22 66.8775 50 0.9 71
IV.MPPT.EHZ. 2022-02-06T02:38:53.19 0.3 undecidable manual P 74 67.8765 50 0.17 67
IV.MAGO.CHE. 2022-02-06T02:38:52.63 0.3 undecidable manual P 152 65.2902 50 0 70
IV.CRMI.HHZ. 2022-02-06T02:38:51.44 0.3 undecidable manual P 89 56.499 50 0.16 69
GU.CARD.HHZ. 2022-02-06T02:38:51.16 0.6 undecidable manual S 33 30.8469 104 -0.55 44
GU.SARM.EHE. 2022-02-06T02:38:49.37 0.3 undecidable manual P 13 44.7219 50 -0.08 71
GU.POPM.HHZ. 2022-02-06T02:38:49.84 0.1 undecidable manual P 54 47.7189 50 -0.09 95
IV.PII.HHZ. 2022-02-06T02:38:48.14 0.6 undecidable manual S 111 21.5673 109 -0.47 46
IV.BDI.HHZ. 2022-02-06T02:38:48.40 0.1 undecidable manual P 40 39.5271 50 -0.26 92
GU.MAIM.HHZ. 2022-02-06T02:38:48.64 0.6 undecidable manual S 52 22.0668 109 -0.11 49
GU.EQUI.HHZ. 2022-02-06T02:38:48.69 0.3 undecidable manual P 347 42.624 50 -0.44 66
IV.PLMA.HHZ. 2022-02-06T02:38:48.93 0.3 undecidable manual P 311 44.1225 50 -0.43 66
GU.CARD.HHZ. 2022-02-06T02:38:46.92 0.1 undecidable manual P 33 30.8469 104 -0.13 97
IV.PII.HHZ. 2022-02-06T02:38:45.22 0.1 positive manual P 111 21.5673 109 -0.04 100
GU.MAIM.HHZ. 2022-02-06T02:38:45.63 0.1 positive manual P 52 22.0668 109 0.29 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PII.HHN. ML:1.5 0.0002225 0.18 AML other m 2022-02-06T02:38:48.27
IV.PII.HHE. ML:1.5 0.000229 0.72 AML other m 2022-02-06T02:38:48.31
GU.MAIM.HHN. ML:1.6 0.000305 0.26 AML other m 2022-02-06T02:38:49.28
GU.MAIM.HHE. ML:1.4 0.0001945 0.34 AML other m 2022-02-06T02:38:49.44
GU.CARD.HHN. ML:2.3 0.00103 1.46 AML other m 2022-02-06T02:38:52.00
GU.CARD.HHE. ML:2.1 0.000675 0.08 AML other m 2022-02-06T02:38:52.06
IV.BDI.HHN. ML:1.8 0.000237 0.46 AML other m 2022-02-06T02:38:54.32
IV.BDI.HHE. ML:1.9 0.00026900000000000003 0.5 AML other m 2022-02-06T02:38:54.33
IV.PLMA.HHE. ML:1.2 0.000045700000000000006 1 AML other m 2022-02-06T02:38:57.97
GU.POPM.HHE. ML:1.6 0.000123 1.34 AML other m 2022-02-06T02:38:57.27
GU.POPM.HHN. ML:1.8 0.000195 0.84 AML other m 2022-02-06T02:38:58.10
IV.PLMA.HHN. ML:1.2 0.000050549999999999995 0.7 AML other m 2022-02-06T02:38:59.40
IV.MPPT.EHN. ML:1.4 0.000043249999999999994 0.42 AML other m 2022-02-06T02:39:02.06
GU.GSCL.HHN. ML:1.9 0.000132 0.84 AML other m 2022-02-06T02:39:03.52
GU.GSCL.HHE. ML:1.6 0.0000804 0.9 AML other m 2022-02-06T02:39:05.87
GU.GRAM.HHN. ML:1.8 0.00008995 0.14 AML other m 2022-02-06T02:39:06.59
IV.MPPT.EHE. ML:1.3 0.000036049999999999995 1.34 AML other m 2022-02-06T02:39:06.67
GU.GRAM.HHE. ML:1.7 0.00006795000000000001 1.18 AML other m 2022-02-06T02:39:08.18
IV.MSSA.HHN. ML:1.9 0.00010575 0.86 AML other m 2022-02-06T02:39:08.82
IV.MSSA.HHE. ML:2.1 0.0001565 0.12 AML other m 2022-02-06T02:39:10.16
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