Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 05-03-2023 and time 05:52:03 (UTC) in region 6 km NW Pontremoli (MS)

A magnitude ML 2.0 earthquake occured in region: 6 km NW Pontremoli (MS), on

  • 05-03-2023 05:52:03 (UTC)
  • 05-03-2023 06:52:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4220, 9.8400 at 73 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
Pontremoli MS 6 7357 7357
Borgo Val di Taro PR 9 6999 14356
Zeri MS 10 1094 15450
Albareto PR 11 2156 17606
Mulazzo MS 12 2424 20030
Filattiera MS 13 2309 22339
Berceto PR 15 2109 24448
Compiano PR 16 1112 25560
Valmozzola PR 17 539 26099
Villafranca in Lunigiana MS 17 4770 30869
Bagnone MS 17 1887 32756
Zignago SP 18 532 33288
Tornolo PR 18 1010 34298
Bedonia PR 19 3482 37780
Sesta Godano SP 19 1377 39157
Calice al Cornoviglio SP 20 1138 40295
Varese Ligure SP 20 2059 42354
Rocchetta di Vara SP 20 703 43057

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of La Spezia (93959 inhabitants)
43 Km NW of Carrara (63133 inhabitants)
49 Km NW of Massa (69479 inhabitants)
57 Km SW of Parma (192836 inhabitants)
70 Km W of Reggio nell'Emilia (171345 inhabitants)
70 Km NW of Viareggio (62467 inhabitants)
71 Km S of Piacenza (102191 inhabitants)
72 Km E of Genova (586655 inhabitants)
81 Km S of Cremona (71901 inhabitants)
83 Km NW of Lucca (89046 inhabitants)
90 Km W of Modena (184973 inhabitants)
90 Km NW of Pisa (89158 inhabitants)
92 Km W of Carpi (70699 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 2.0 2023-03-05
05:52:03		 44.4223 9.8402 73 2024-03-01
17:18:02		 Bollettino Sismico Italiano INGV 116282641
Reviewed
Rev100 		ML 2.2 2023-03-05
05:52:03		 44.4662 9.8518 63 2023-03-05
06:00:52		 Sala Sismica INGV-Roma 114999131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-05 05:52:03 ± 0.18
Latitude 44.4223 ± 0.0108
Longitude 9.8402 ± 0.0151
Depth (km) 73 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116282641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1136
Semi-minor axis of confidence ellipse (meter) 998
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 64
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.17447
Epicentral distance of station farthest from the epicenter (degree) 2.23751
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 45
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 116282641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-23 15:45:19

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 114999131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-05 06:00:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MUGIO.HHZ. 2023-03-05T05:52:49.10 0.3 undecidable manual S 340 177.6888 104 -0.56 48
IV.SGAL.EHZ. 2023-03-05T05:52:39.40 0.6 undecidable manual S 16 131.868 111 -0.83 34
ST.ZIAN.EHZ. 2023-03-05T05:52:38.77 0.3 undecidable manual P 33 245.6652 100 0.48 31
OX.VARN.HHZ. 2023-03-05T05:52:38.26 0.6 undecidable manual P 45 248.3625 100 -0.36 21
CH.FUSIO.HHZ. 2023-03-05T05:52:37.71 0.3 undecidable manual P 338 243.3675 100 -0.3 33
IV.CRMI.HHZ. 2023-03-05T05:52:36.70 0.6 undecidable manual S 127 114.2967 114 -0.04 42
IV.CTI.HHZ. 2023-03-05T05:52:36.14 0.1 undecidable manual P 37 229.1928 101 -0.13 50
CH.BERNI.HHZ. 2023-03-05T05:52:35.92 0.3 undecidable manual P 4 221.4117 101 0.6 35
ST.PANI.EHZ. 2023-03-05T05:52:34.41 0.3 undecidable manual P 32 215.0181 101 -0.13 41
GU.PCP.HHZ. 2023-03-05T05:52:33.80 0.6 undecidable manual S 278 103.3188 117 -0.79 36
GU.TRAV.HHZ. 2023-03-05T05:52:32.12 0.6 undecidable manual P 307 204.0402 102 -1.08 21
IV.PII.HHZ. 2023-03-05T05:52:31.80 0.6 undecidable manual S 145 94.9383 120 -1.21 28
IV.MABI.HHZ. 2023-03-05T05:52:31.35 0.3 undecidable manual P 16 188.5668 103 0.02 50
GU.POPM.HHZ. 2023-03-05T05:52:31.20 0.6 undecidable manual S 120 84.0492 123 0.2 45
ST.DOSS.HHZ. 2023-03-05T05:52:31.58 0.3 undecidable manual P 33 193.1622 103 -0.3 45
SI.LUSI.HHZ. 2023-03-05T05:52:31.29 0.3 undecidable manual P 26 191.0643 103 -0.35 46
ST.RONC.EHZ. 2023-03-05T05:52:30.72 0.3 undecidable manual P 19 183.3831 104 0.03 51
CH.MUGIO.HHZ. 2023-03-05T05:52:29.67 0.1 undecidable manual P 340 177.6888 104 -0.34 66
ST.VARA.EHZ. 2023-03-05T05:52:29.73 0.3 undecidable manual P 28 176.2902 105 -0.12 52
IV.ROVR.HHZ. 2023-03-05T05:52:28.39 0.3 undecidable manual P 35 166.7109 106 -0.3 52
IV.BDI.HHZ. 2023-03-05T05:52:28.60 0.6 undecidable manual S 123 72.0723 128 -0.31 43
IV.PRMA.HNN. 2023-03-05T05:52:28.77 0.6 undecidable manual S 44 53.2023 138 2.82 4
IV.ZOVE.EHZ. 2023-03-05T05:52:28.79 0.3 undecidable manual P 48 172.6938 105 -0.62 46
ZO.PDN3.HNZ. 2023-03-05T05:52:28.86 0.3 undecidable manual P 24 169.497 105 -0.17 53
OX.MARN.HHZ. 2023-03-05T05:52:28.97 0.3 undecidable manual P 38 172.3941 105 -0.4 49
GU.MAIM.HHZ. 2023-03-05T05:52:28.50 0.6 undecidable manual S 137 76.6677 126 -1.2 30
IV.MBAL.HNE. 2023-03-05T05:52:27.95 0.3 undecidable manual P 29 162.4152 106 -0.23 54
GU.RNCA.HHZ. 2023-03-05T05:52:27.80 0.6 undecidable manual S 275 70.5738 129 -0.86 38
GU.CARD.HHZ. 2023-03-05T05:52:27.30 0.6 undecidable manual S 131 67.377 131 -0.83 37
IV.MAGA.HHZ. 2023-03-05T05:52:27.85 0.1 undecidable manual P 22 162.3153 106 -0.32 71
IV.ZEN8.HNE. 2023-03-05T05:52:26.54 0.1 undecidable manual P 27 151.9368 107 -0.39 73
IV.MERA.HNE. 2023-03-05T05:52:26.30 0.3 undecidable manual P 347 145.9428 108 0.08 59
IV.VOBA.HNN. 2023-03-05T05:52:26.27 0.3 undecidable manual P 21 145.0437 108 0.15 59
IV.MDI.HHE. 2023-03-05T05:52:26.66 0.3 undecidable manual P 356 149.8389 108 -0.01 60
ZO.PDN2.HNE. 2023-03-05T05:52:25.90 0.3 undecidable manual P 34 144.3444 108 -0.13 59
GU.GORR.HHZ. 2023-03-05T05:52:25.60 0.3 undecidable manual S 296 47.9187 142 0.39 66
MN.VLC.HHZ. 2023-03-05T05:52:25.20 0.6 undecidable manual S 124 52.3032 139 -0.61 42
GU.SARM.EHN. 2023-03-05T05:52:25.60 0.6 undecidable manual S 121 51.8037 139 -0.14 47
IV.SGAL.EHZ. 2023-03-05T05:52:24.50 0.1 undecidable manual P 16 131.868 111 -0.07 82
IV.CRMI.HHZ. 2023-03-05T05:52:23.01 0.3 undecidable manual P 127 114.2967 114 0.46 60
GU.EQUI.HHZ. 2023-03-05T05:52:22.70 0.6 undecidable manual S 139 37.7289 148 -1.25 32
GU.FIVI.HNE. 2023-03-05T05:52:22.76 0.6 undecidable manual S 132 30.5472 154 -0.44 46
GU.GRAM.HHZ. 2023-03-05T05:52:22.50 0.3 undecidable manual S 67 19.3695 163 0.19 73
IV.PLMA.HHZ. 2023-03-05T05:52:22.90 0.6 undecidable manual S 179 41.3253 146 -1.47 28
IV.MSSA.HHZ. 2023-03-05T05:52:22.10 0.6 undecidable manual S 245 28.1496 156 -0.88 41
GU.PCP.HHZ. 2023-03-05T05:52:21.34 0.3 undecidable manual P 278 103.3188 117 0.03 66
IV.PII.HHZ. 2023-03-05T05:52:20.51 0.1 undecidable manual P 145 94.9383 120 0.11 89
GU.POPM.HHZ. 2023-03-05T05:52:20.14 0.3 undecidable manual P 120 84.0492 123 0.9 54
GU.MAIM.HHZ. 2023-03-05T05:52:18.26 0.3 undecidable manual P 137 76.6677 126 -0.22 65
GU.GSCL.HHN. 2023-03-05T05:52:18.52 0.3 undecidable manual P 97 59.7957 135 1.63 38
IV.BDI.HHZ. 2023-03-05T05:52:18.15 0.3 undecidable manual P 123 72.0723 128 0.12 70
GU.CARD.HHZ. 2023-03-05T05:52:17.47 0.6 undecidable manual P 131 67.377 131 -0.11 46
IV.ERBM.EHE. 2023-03-05T05:52:17.03 0.1 undecidable manual P 90 45.3213 143 1.33 61
IV.PRMA.HNN. 2023-03-05T05:52:17.80 0.3 undecidable manual P 44 53.2023 138 1.48 41
IV.BOB.HNE. 2023-03-05T05:52:17.04 0.1 undecidable manual P 321 49.3173 141 1.04 69
GU.RNCA.HHZ. 2023-03-05T05:52:17.94 0.3 undecidable manual P 275 70.5738 129 0.05 70
GU.SARM.EHN. 2023-03-05T05:52:16.45 0.1 undecidable manual P 121 51.8037 139 0.25 93
GU.GORR.HHZ. 2023-03-05T05:52:16.72 0.1 undecidable manual P 296 47.9187 142 0.82 76
MN.VLC.HHZ. 2023-03-05T05:52:16.59 0.3 undecidable manual P 124 52.3032 139 0.35 68
IV.PLMA.HHZ. 2023-03-05T05:52:15.20 0.3 undecidable manual P 179 41.3253 146 -0.21 71
GU.EQUI.HHZ. 2023-03-05T05:52:15.15 0.3 undecidable manual P 139 37.7289 148 -0.02 74
GU.FIVI.HNE. 2023-03-05T05:52:15.08 0.3 undecidable manual P 132 30.5472 154 0.35 71
IV.MSSA.HHZ. 2023-03-05T05:52:14.67 0.1 negative manual P 245 28.1496 156 0.06 100
GU.GRAM.HHZ. 2023-03-05T05:52:14.92 0.1 undecidable manual P 67 19.3695 163 0.7 85
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSSA.HHN. ML:2.9 0.00111 0.1 AML other m 2023-03-05T05:52:22.58
IV.MSSA.HHE. ML:3.1 0.0017800000000000001 0.1 AML other m 2023-03-05T05:52:22.64
IV.PLMA.HHN. ML:2.5 0.00041349999999999997 0.26 AML other m 2023-03-05T05:52:23.09
GU.EQUI.HHE. ML:1.6 0.000056099999999999995 1.28 AML other m 2023-03-05T05:52:23.24
IV.PLMA.HHE. ML:2.4 0.0003445 0.42 AML other m 2023-03-05T05:52:23.37
GU.EQUI.HHN. ML:1.6 0.0000557 0.24 AML other m 2023-03-05T05:52:23.43
GU.GRAM.HHE. ML:2.5 0.0004525 0.42 AML other m 2023-03-05T05:52:23.67
GU.GRAM.HHN. ML:2.6 0.0005994999999999999 1.68 AML other m 2023-03-05T05:52:23.89
GU.GORR.HHE. ML:2.3 0.0002445 0.24 AML other m 2023-03-05T05:52:26.20
MN.VLC.HHE. ML:1.3 0.000024959865000000002 0.1216 AML other m 2023-03-05T05:52:26.14
MN.VLC.HHN. ML:1.4 0.000029908495 0.1408 AML other m 2023-03-05T05:52:26.12
GU.GORR.HHN. ML:2.2 0.0002205 0.14 AML other m 2023-03-05T05:52:26.35
MN.VLC.HNE. ML:1.6 0.0000499314 0.3584 AML other m 2023-03-05T05:52:26.45
MN.VLC.HNN. ML:1.9 0.00008301221 1.9584 AML other m 2023-03-05T05:52:28.48
GU.RNCA.HHE. ML:2.1 0.00011509999999999999 0.1 AML other m 2023-03-05T05:52:27.94
GU.RNCA.HHN. ML:2.0 0.00009755 0.1 AML other m 2023-03-05T05:52:27.90
GU.CARD.HHE. ML:2.1 0.0001135 1.9 AML other m 2023-03-05T05:52:28.02
GU.CARD.HHN. ML:2.1 0.00013002475 0.1024 AML other m 2023-03-05T05:52:28.15
GU.MAIM.HHE. ML:1.7 0.000051412975 0.24 AML other m 2023-03-05T05:52:28.73
IV.BDI.HHN. ML:2.1 0.00011875 0.12 AML other m 2023-03-05T05:52:28.77
IV.BDI.HNE. ML:2.2 0.00013600005 0.1408 AML other m 2023-03-05T05:52:28.82
IV.BDI.HHE. ML:2.1 0.00011399999999999999 0.16 AML other m 2023-03-05T05:52:28.81
GU.MAIM.HHN. ML:1.5 0.00003035231 0.16 AML other m 2023-03-05T05:52:29.01
IV.BDI.HNN. ML:2.2 0.00013277088550000003 0.5376 AML other m 2023-03-05T05:52:32.46
IV.PII.HHN. ML:2.2 0.0001213 0.48 AML other m 2023-03-05T05:52:32.61
IV.PII.HHE. ML:2.0 0.00007445000000000001 0.92 AML other m 2023-03-05T05:52:33.48
GU.PCP.HHN. ML:1.3 0.000013227599 0.1792 AML other m 2023-03-05T05:52:34.60
GU.POPM.HHN. ML:1.8 0.00005695 1.28 AML other m 2023-03-05T05:52:34.09
GU.POPM.HHE. ML:1.8 0.0000511 0.46 AML other m 2023-03-05T05:52:36.26
IV.CRMI.HHE. ML:1.2 0.000011565235 1.1392 AML other m 2023-03-05T05:52:37.88
IV.CRMI.HHN. ML:1.4 0.00001571803 0.3808 AML other m 2023-03-05T05:52:39.00
IV.SGAL.EHN. ML:2.0 0.000047779970000000005 0.0992 AML other m 2023-03-05T05:52:40.19
IV.SGAL.EHE. ML:1.9 0.000037632845 0.08 AML other m 2023-03-05T05:52:40.30
ST.PANI.HNN. ML:2.9 0.000188525 1.1 AML other m 2023-03-05T05:52:40.93
GU.PCP.HHE. ML:1.3 0.000016990501 0.8192 AML other m 2023-03-05T05:52:41.51
IV.MAGA.HHN. ML:2.0 0.0000376 1.46 AML other m 2023-03-05T05:52:46.91
IV.ROVR.HHE. ML:1.9 0.000030846775 0.1184 AML other m 2023-03-05T05:52:47.17
IV.MAGA.HHE. ML:2.2 0.0000668 0.92 AML other m 2023-03-05T05:52:47.49
IV.ROVR.HHN. ML:2.2 0.00005970981 0.1408 AML other m 2023-03-05T05:52:47.58
OX.MARN.HHN. ML:2.1 0.0000393 0.62 AML other m 2023-03-05T05:52:48.32
OX.MARN.HHE. ML:2.0 0.000031100000000000004 1.24 AML other m 2023-03-05T05:52:49.31
ST.RONC.EHE. ML:2.2 0.00005085 0.12 AML other m 2023-03-05T05:52:51.38
ST.RONC.EHN. ML:2.2 0.0000485 1.14 AML other m 2023-03-05T05:52:51.34
IV.MABI.HHN. ML:1.8 0.000019775 0.22 AML other m 2023-03-05T05:52:52.10
IV.MABI.HHE. ML:1.8 0.0000205 1.06 AML other m 2023-03-05T05:52:52.31
SI.LUSI.HHN. ML:2.6 0.00011115 0.38 AML other m 2023-03-05T05:52:52.20
SI.LUSI.HHE. ML:2.5 0.00009125 1.5 AML other m 2023-03-05T05:52:52.19
ST.PANI.HNE. ML:2.9 0.00017625 0.42 AML other m 2023-03-05T05:52:55.36
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