Earthquake with magnitude of ML 2.3 on date 21-12-2022 and time 11:28:51 (UTC) in region 4 km NE Sillano Giuncugnano (LU)

A magnitude ML 2.3 earthquake occured in region: 4 km NE Sillano Giuncugnano (LU), on

  • 21-12-2022 11:28:51 (UTC)
  • 21-12-2022 12:28:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2480, 10.3350 at 9 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
Sillano Giuncugnano LU 4 1085 1085
Piazza al Serchio LU 8 2367 3452
San Romano in Garfagnana LU 9 1410 4862
Camporgiano LU 10 2176 7038
Villa Collemandina LU 11 1334 8372
Castiglione di Garfagnana LU 13 1818 10190
Minucciano LU 13 2102 12292
Ventasso RE 14 4295 16587
Casola in Lunigiana MS 14 988 17575
Careggine LU 14 564 18139
Pieve Fosciana LU 14 2414 20553
Vagli Sotto LU 15 939 21492
Castelnuovo di Garfagnana LU 16 5950 27442
Fivizzano MS 17 7925 35367
Comano MS 17 714 36081
Villa Minozzo RE 17 3750 39831
Fosciandora LU 18 602 40433
Frassinoro MO 20 1926 42359

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Carrara (63133 inhabitants)
28 Km NE of Massa (69479 inhabitants)
43 Km N of Viareggio (62467 inhabitants)
43 Km E of La Spezia (93959 inhabitants)
47 Km NW of Lucca (89046 inhabitants)
55 Km SW of Reggio nell'Emilia (171345 inhabitants)
58 Km NW of Pistoia (90315 inhabitants)
59 Km N of Pisa (89158 inhabitants)
62 Km S of Parma (192836 inhabitants)
65 Km SW of Modena (184973 inhabitants)
73 Km NW of Prato (191150 inhabitants)
74 Km SW of Carpi (70699 inhabitants)
77 Km N of Livorno (159219 inhabitants)
85 Km W of Bologna (386663 inhabitants)
87 Km NW of Scandicci (50609 inhabitants)
91 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 2.3 2022-12-21
11:28:51
44.2478 10.3348 9 2024-03-01
15:28:18
Bollettino Sismico Italiano INGV 114017931
Reviewed
Rev100
ML 2.4 2022-12-21
11:28:51
44.2477 10.3373 9 2022-12-21
11:39:33
Sala Sismica INGV-Roma 112998271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-21 11:28:51 ± 0.08
Latitude 44.2478 ± 0.0045
Longitude 10.3348 ± 0.0063
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 114017931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 517
Semi-minor axis of confidence ellipse (meter) 296
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.76357
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 114017931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-12 15:20:20

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 112998271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-21 11:39:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BULG.HHZ. 2022-12-21T11:30:32.52 3.0 undecidable manual Pg 17.84 0
IV.CERA.HNZ. 2022-12-21T11:30:32.36 3.0 undecidable manual Sn -2.6 0
IV.CAMP.HHZ. 2022-12-21T11:30:17.90 3.0 undecidable manual Sg 6.52 0
IV.PAOL.HHZ. 2022-12-21T11:30:04.06 3.0 positive manual Pn 4.79 0
IV.ARVD.HHZ. 2022-12-21T11:29:52.33 3.0 undecidable manual Sn 0.18 0
MN.TRI.HHZ. 2022-12-21T11:29:47.02 3.0 negative manual Pg 10.06 0
IV.CAMP.HHZ. 2022-12-21T11:29:36.08 3.0 undecidable manual Pn -0.39 0
SI.LUSI.HHZ. 2022-12-21T11:29:23.45 0.3 undecidable manual P 14 195.7596 38 0.54 41
GU.CANO.HHZ. 2022-12-21T11:29:18.50 0.6 undecidable manual P 269 166.8108 50 -0.48 33
IV.CASP.HHZ. 2022-12-21T11:29:18.70 3.0 undecidable manual P -0.2 0
IV.CRE.HHZ. 2022-12-21T11:29:17.10 0.6 undecidable manual P 118 146.8419 50 1.2 26
GU.PCP.HHZ. 2022-12-21T11:29:15.54 0.6 undecidable manual P 284 145.5432 50 -0.16 38
IV.SFI.EHZ. 2022-12-21T11:29:13.72 0.3 undecidable manual P 107 126.3735 50 0.97 46
IV.RUFI.EHZ. 2022-12-21T11:29:09.87 0.3 undecidable manual P 115 104.118 50 0.55 57
IV.SEI.HHZ. 2022-12-21T11:29:06.46 0.3 undecidable manual P 104 84.249 50 0.2 64
GU.POPM.HHZ. 2022-12-21T11:29:05.31 0.3 undecidable manual S 124 40.4262 50 -0.03 72
IV.PLMA.HHZ. 2022-12-21T11:29:05.76 0.6 undecidable manual S 240 44.1225 50 -0.57 42
IV.CRMI.HHZ. 2022-12-21T11:29:04.48 0.3 undecidable manual P 134 71.8725 50 0.13 67
GU.MAIM.HHZ. 2022-12-21T11:29:04.43 0.3 undecidable manual S 161 39.1275 50 -0.58 64
IV.MSSA.HHZ. 2022-12-21T11:29:03.53 0.1 undecidable manual P 277 65.3901 50 0.18 89
GU.GRAM.HHZ. 2022-12-21T11:29:03.27 0.3 undecidable manual S 322 34.3434 50 -0.46 67
IV.MPPT.EHZ. 2022-12-21T11:29:03.77 0.3 undecidable manual P 118 68.2761 50 -0.02 69
IV.PII.HHZ. 2022-12-21T11:29:02.32 0.3 undecidable manual P 165 60.2952 50 -0.25 67
IV.ZCCA.HHZ. 2022-12-21T11:29:02.70 0.3 undecidable manual P 77 52.2033 50 1.38 43
IV.BDI.HHZ. 2022-12-21T11:29:01.76 0.3 undecidable manual S 135 29.1486 106 -0.33 69
GU.CARD.HHE. 2022-12-21T11:29:01.52 0.3 undecidable manual S 154 27.2505 107 0.07 73
IV.PLMA.HHZ. 2022-12-21T11:29:00.03 0.1 positive manual P 240 44.1225 50 -0.05 95
IV.NEVI.HNZ. 2022-12-21T11:28:59.79 0.3 undecidable manual P 358 37.2294 50 0.77 59
GU.GSCL.HHZ. 2022-12-21T11:28:59.29 0.3 undecidable manual S 60 23.0547 110 -0.8 60
GU.POPM.HHZ. 2022-12-21T11:28:59.26 0.1 negative manual P 124 40.4262 50 -0.24 92
GU.GRAM.HHZ. 2022-12-21T11:28:58.33 0.1 positive manual P 322 34.3434 50 -0.25 93
GU.FIVI.HNZ. 2022-12-21T11:28:58.06 0.6 undecidable manual S 267 16.5723 117 0.06 50
GU.MAIM.HHZ. 2022-12-21T11:28:58.89 0.1 positive manual P 161 39.1275 50 -0.42 89
GU.EQUI.HHZ. 2022-12-21T11:28:58.37 0.6 undecidable manual S 238 17.0718 117 0.21 48
IV.ERBM.EHN. 2022-12-21T11:28:58.82 0.6 undecidable manual S 18 20.0688 113 -0.27 48
GU.CARD.HHE. 2022-12-21T11:28:57.09 0.3 undecidable manual P 154 27.2505 107 -0.17 72
IV.BDI.HHZ. 2022-12-21T11:28:57.33 0.3 undecidable manual P 135 29.1486 106 -0.3 70
MN.VLC.HNZ. 2022-12-21T11:28:56.58 0.6 undecidable manual S 157 10.5783 129 0.31 48
GU.GSCL.HHZ. 2022-12-21T11:28:56.24 0.1 positive manual P 60 23.0547 110 -0.23 95
IV.ERBM.EHN. 2022-12-21T11:28:55.78 0.1 undecidable manual P 18 20.0688 113 -0.12 98
GU.FIVI.HNZ. 2022-12-21T11:28:55.48 0.1 undecidable manual P 267 16.5723 117 0.21 97
GU.SARM.EHZ. 2022-12-21T11:28:55.62 0.6 undecidable manual S 143 8.7801 134 -0.18 49
GU.EQUI.HHZ. 2022-12-21T11:28:55.42 0.1 undecidable manual P 238 17.0718 117 0.06 100
MN.VLC.HNZ. 2022-12-21T11:28:54.64 0.1 positive manual P 157 10.5783 129 0.37 95
GU.SARM.EHZ. 2022-12-21T11:28:54.12 0.1 undecidable manual P 143 8.7801 134 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.VLC.HHE. ML:2.3 0.00283 0.34 AML other m 2022-12-21T11:28:56.92
MN.VLC.HNE. ML:2.3 0.0028200000000000005 0.34 AML other m 2022-12-21T11:28:56.92
MN.VLC.HNN. ML:2.3 0.0029000000000000002 0.22 AML other m 2022-12-21T11:28:56.95
MN.VLC.HHN. ML:2.4 0.0031100000000000004 0.22 AML other m 2022-12-21T11:28:56.95
GU.EQUI.HHN. ML:1.9 0.0006955 0.36 AML other m 2022-12-21T11:28:58.64
GU.FIVI.HNE. ML:2.6 0.00342 0.14 AML other m 2022-12-21T11:28:58.59
GU.EQUI.HHE. ML:1.8 0.0006174999999999999 0.08 AML other m 2022-12-21T11:28:58.51
GU.GSCL.HHE. ML:2.5 0.0021100000000000003 0.26 AML other m 2022-12-21T11:28:59.43
GU.FIVI.HNN. ML:2.5 0.002765 0.4 AML other m 2022-12-21T11:28:59.32
GU.GSCL.HHN. ML:2.7 0.0032749999999999997 0.38 AML other m 2022-12-21T11:28:59.64
IV.BDI.HNE. ML:2.4 0.0013399999999999998 0.3 AML other m 2022-12-21T11:29:02.70
IV.BDI.HNN. ML:2.4 0.00118 0.2 AML other m 2022-12-21T11:29:02.71
IV.BDI.HHN. ML:2.5 0.00146 0.18 AML other m 2022-12-21T11:29:02.70
IV.BDI.HHE. ML:2.3 0.0011 0.44 AML other m 2022-12-21T11:29:03.36
GU.MAIM.HHN. ML:2.1 0.00047299999999999995 0.24 AML other m 2022-12-21T11:29:04.72
GU.MAIM.HHE. ML:2.1 0.0004345 0.2 AML other m 2022-12-21T11:29:05.25
GU.GRAM.HHN. ML:2.6 0.00165 1.28 AML other m 2022-12-21T11:29:05.09
GU.GRAM.HHE. ML:2.6 0.00177 1.5 AML other m 2022-12-21T11:29:06.95
IV.PLMA.HHN. ML:2.2 0.0005495 0.46 AML other m 2022-12-21T11:29:06.56
GU.POPM.HHE. ML:2.7 0.001895 0.16 AML other m 2022-12-21T11:29:06.72
GU.POPM.HHN. ML:2.6 0.0014650000000000002 0.16 AML other m 2022-12-21T11:29:06.78
IV.PLMA.HHE. ML:2.2 0.0005660000000000001 0.52 AML other m 2022-12-21T11:29:06.64
IV.MSSA.HHN. ML:2.6 0.0007335 0.12 AML other m 2022-12-21T11:29:12.96
IV.MSSA.HHE. ML:2.7 0.000887 0.36 AML other m 2022-12-21T11:29:13.48
IV.PII.HHN. ML:2.6 0.0009279999999999999 1.8 AML other m 2022-12-21T11:29:14.06
IV.ZCCA.HHE. ML:2.2 0.000383 0.4 AML other m 2022-12-21T11:29:14.26
IV.PII.HHE. ML:2.6 0.000867 0.24 AML other m 2022-12-21T11:29:14.43
IV.ZCCA.HHN. ML:2.2 0.00039749999999999996 0.4 AML other m 2022-12-21T11:29:14.49
IV.MPPT.EHN. ML:2.0 0.0001915 0.36 AML other m 2022-12-21T11:29:17.42
IV.CRMI.HHN. ML:2.0 0.00014700000000000002 0.22 AML other m 2022-12-21T11:29:18.46
IV.CRMI.HHE. ML:1.8 0.00010600000000000002 0.52 AML other m 2022-12-21T11:29:18.83
IV.MPPT.EHE. ML:1.9 0.000135 0.64 AML other m 2022-12-21T11:29:21.36
IV.SEI.HHE. ML:2.4 0.0003435 0.44 AML other m 2022-12-21T11:29:23.75
IV.SEI.HHN. ML:2.4 0.000334 1.24 AML other m 2022-12-21T11:29:24.28
IV.CRE.HHN. ML:2.0 0.000052449999999999994 1.72 AML other m 2022-12-21T11:29:41.96
IV.CRE.HHE. ML:2.0 0.00005085 0.44 AML other m 2022-12-21T11:29:41.44
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
Waveforms Seismic signals in miniseed + resp format Download