Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 01-12-2022 and time 12:21:59 (Italy) in region 7 km NW Sillano Giuncugnano (LU)

A magnitude ML 1.0 earthquake occured in region: 7 km NW Sillano Giuncugnano (LU), on

  • 01-12-2022 11:21:59 (UTC)
  • 01-12-2022 12:21:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2750, 10.2560 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sillano Giuncugnano LU 7 1085 1085
Comano MS 10 714 1799
Casola in Lunigiana MS 10 988 2787
Piazza al Serchio LU 11 2367 5154
Fivizzano MS 11 7925 13079
Ventasso RE 12 4295 17374
Minucciano LU 12 2102 19476
San Romano in Garfagnana LU 14 1410 20886
Camporgiano LU 14 2176 23062
Villa Collemandina LU 17 1334 24396
Licciana Nardi MS 17 4949 29345
Vagli Sotto LU 18 939 30284
Careggine LU 18 564 30848
Palanzano PR 19 1142 31990
Monchio delle Corti PR 19 933 32923
Castiglione di Garfagnana LU 19 1818 34741
Villa Minozzo RE 20 3750 38491

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Carrara (63133 inhabitants)
28 Km NE of Massa (69479 inhabitants)
39 Km E of La Spezia (93959 inhabitants)
45 Km N of Viareggio (62467 inhabitants)
52 Km NW of Lucca (89046 inhabitants)
56 Km SW of Reggio nell'Emilia (171345 inhabitants)
59 Km S of Parma (192836 inhabitants)
63 Km N of Pisa (89158 inhabitants)
65 Km NW of Pistoia (90315 inhabitants)
67 Km SW of Modena (184973 inhabitants)
75 Km SW of Carpi (70699 inhabitants)
80 Km NW of Prato (191150 inhabitants)
80 Km N of Livorno (159219 inhabitants)
90 Km W of Bologna (386663 inhabitants)
94 Km NW of Scandicci (50609 inhabitants)
97 Km SE of Piacenza (102191 inhabitants)
97 Km S of Cremona (71901 inhabitants)
98 Km NW 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 2022-12-01
11:21:59		 44.2753 10.2558 10 2024-03-01
15:28:26		 Bollettino Sismico Italiano INGV 118271351
Reviewed
Rev100 		ML 1.0 2022-12-01
11:21:59		 44.2728 10.2592 10 2022-12-01
11:28:17		 Sala Sismica INGV-Roma 112411521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-01 11:21:59 ± 0.06
Latitude 44.2753 ± 0.0036
Longitude 10.2558 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118271351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 353
Semi-minor axis of confidence ellipse (meter) 341
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.42628
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:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 118271351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-10 13:08:24

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 112411521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-01 11:28:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2022-12-01T11:22:15.08 0.3 undecidable manual S 122 47.3193 50 0.41 66
GU.MAIM.HHZ. 2022-12-01T11:22:13.38 0.6 undecidable manual S 155 44.3223 50 -0.49 43
IV.PLMA.HHZ. 2022-12-01T11:22:12.53 0.6 undecidable manual S 232 40.626 50 -0.34 45
IV.BDI.HHZ. 2022-12-01T11:22:11.53 0.6 undecidable manual S 131 35.8419 50 -0.08 48
GU.CARD.HHZ. 2022-12-01T11:22:10.70 0.6 undecidable manual S 147 33.0447 50 -0.14 48
GU.GSCL.HHE. 2022-12-01T11:22:09.12 0.3 undecidable manual S 72 27.6501 50 -0.29 70
GU.GRAM.HHZ. 2022-12-01T11:22:09.09 0.6 undecidable manual S 328 28.2495 50 -0.48 45
GU.MAIM.HHZ. 2022-12-01T11:22:08.17 0.6 undecidable manual P 155 44.3223 50 0.42 44
GU.POPM.HHZ. 2022-12-01T11:22:08.58 0.3 undecidable manual P 122 47.3193 50 0.37 66
IV.PLMA.HHZ. 2022-12-01T11:22:07.55 0.3 undecidable manual P 232 40.626 50 0.38 67
IV.ERBM.EHE. 2022-12-01T11:22:07.27 0.3 undecidable manual S 38 20.2686 117 0.01 75
IV.BDI.HHZ. 2022-12-01T11:22:06.46 0.3 undecidable manual P 131 35.8419 50 0.02 73
GU.GSCL.HHE. 2022-12-01T11:22:05.15 0.1 undecidable manual P 72 27.6501 50 -0.03 98
MN.VLC.HHZ. 2022-12-01T11:22:05.67 0.6 undecidable manual S 141 16.5723 122 -0.45 46
GU.GRAM.HHZ. 2022-12-01T11:22:05.25 0.1 undecidable manual P 328 28.2495 50 -0.02 98
GU.CARD.HHZ. 2022-12-01T11:22:05.99 0.3 undecidable manual P 147 33.0447 50 -0.01 73
GU.EQUI.HHZ. 2022-12-01T11:22:05.58 0.3 undecidable manual S 214 14.6742 125 0 76
GU.SARM.EHE. 2022-12-01T11:22:05.56 0.1 undecidable manual S 131 15.3735 124 -0.22 96
GU.FIVI.HNZ. 2022-12-01T11:22:04.44 0.1 undecidable manual S 249 10.9779 133 -0.15 99
IV.ERBM.EHE. 2022-12-01T11:22:04.06 0.1 undecidable manual P 38 20.2686 117 0.13 97
GU.EQUI.HHZ. 2022-12-01T11:22:03.07 0.1 positive manual P 214 14.6742 125 0.11 99
GU.SARM.EHE. 2022-12-01T11:22:03.12 0.1 undecidable manual P 131 15.3735 124 0.05 100
MN.VLC.HHZ. 2022-12-01T11:22:03.39 0.1 undecidable manual P 141 16.5723 122 0.12 98
GU.FIVI.HNZ. 2022-12-01T11:22:02.50 0.1 undecidable manual P 249 10.9779 133 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.EQUI.HHE. ML:0.9 0.00007165 0.16 AML other m 2022-12-01T11:22:05.96
MN.VLC.HNN. ML:0.7 0.000045645204999999995 0.096 AML other m 2022-12-01T11:22:06.28
MN.VLC.HHN. ML:0.7 0.00004539047 0.096 AML other m 2022-12-01T11:22:06.28
GU.EQUI.HHN. ML:0.9 0.00006850000000000001 0.18 AML other m 2022-12-01T11:22:06.65
MN.VLC.HNE. ML:0.9 0.000071136795 0.096 AML other m 2022-12-01T11:22:06.77
MN.VLC.HHE. ML:0.9 0.00007361492 0.1152 AML other m 2022-12-01T11:22:06.76
GU.CARD.HHN. ML:1.4 0.000114 0.1 AML other m 2022-12-01T11:22:11.26
GU.CARD.HHE. ML:1.5 0.00014700000000000002 0.18 AML other m 2022-12-01T11:22:11.52
IV.BDI.HHE. ML:1.1 0.00004713084 0.224 AML other m 2022-12-01T11:22:12.12
IV.BDI.HHN. ML:1.2 0.00006775000000000001 1.26 AML other m 2022-12-01T11:22:12.16
IV.PLMA.HHE. ML:1.0 0.000034970578 0.1792 AML other m 2022-12-01T11:22:13.16
IV.PLMA.HHN. ML:1.0 0.000029056198499999997 0.096 AML other m 2022-12-01T11:22:13.78
GU.MAIM.HHN. ML:0.9 0.00002536325 0.1408 AML other m 2022-12-01T11:22:14.20
GU.POPM.HHN. ML:1.4 0.00006604999999999999 1.04 AML other m 2022-12-01T11:22:15.26
GU.POPM.HHE. ML:1.2 0.000037668924999999996 1.6352 AML other m 2022-12-01T11:22:16.98
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