Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 29-12-2021 and time 04:07:46 (Italy) in region 4 km NW Salsomaggiore Terme (PR)

A magnitude ML 2.2 earthquake occured in region: 4 km NW Salsomaggiore Terme (PR), on

  • 29-12-2021 03:07:46 (UTC)
  • 29-12-2021 04:07:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8470, 9.9570 at 27 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
Salsomaggiore Terme PR 4 19831 19831
Alseno PC 6 4714 24545
Castell'Arquato PC 7 4713 29258
Fidenza PR 9 26770 56028
Fiorenzuola d'Arda PC 10 15297 71325
Lugagnano Val d'Arda PC 11 4116 75441
Vernasca PC 11 2131 77572
Pellegrino Parmense PR 13 1048 78620
Carpaneto Piacentino PC 15 7715 86335
Cadeo PC 16 6118 92453
Besenzone PC 16 978 93431
Soragna PR 16 4834 98265
Busseto PR 16 7054 105319
Cortemaggiore PC 17 4644 109963
Fontevivo PR 17 5597 115560
Fontanellato PR 18 7033 122593
Medesano PR 18 10828 133421
Noceto PR 18 13001 146422
Gropparello PC 18 2293 148715
Varano de' Melegari PR 18 2676 151391
Bore PR 19 749 152140
San Pietro in Cerro PC 20 878 153018

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Parma (192836 inhabitants)
31 Km SE of Piacenza (102191 inhabitants)
32 Km S of Cremona (71901 inhabitants)
56 Km W of Reggio nell'Emilia (171345 inhabitants)
73 Km SE of Pavia (72576 inhabitants)
74 Km W of Carpi (70699 inhabitants)
80 Km W of Modena (184973 inhabitants)
80 Km S of Brescia (196480 inhabitants)
83 Km N of La Spezia (93959 inhabitants)
86 Km N of Carrara (63133 inhabitants)
91 Km N of Massa (69479 inhabitants)
92 Km SE of Milano (1345851 inhabitants)
94 Km NE of Genova (586655 inhabitants)
95 Km SE of Sesto San Giovanni (81608 inhabitants)
97 Km S of Bergamo (119381 inhabitants)
98 Km SE of Monza (122671 inhabitants)
98 Km SE of Cinisello Balsamo (75078 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 2.2 2021-12-29
03:07:46		 44.8472 9.9573 27 2022-03-30
13:04:28		 Bollettino Sismico Italiano INGV 99521511
Reviewed
Rev100 		ML 2.2 2021-12-29
03:07:45		 44.8013 10.0378 7 2021-12-29
03:24:50		 Sala Sismica INGV-Roma 99096341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-29 03:07:46 ± 0.1
Latitude 44.8472 ± 0.0072
Longitude 9.9573 ± 0.0140
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99521511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 883
Semi-minor axis of confidence ellipse (meter) 810
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 118
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 52
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.81753
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 39
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 99096341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-29 03:24:50

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 99521511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-20 10:54:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.COL3.HHZ.02 2021-12-29T03:09:29.36 3.0 undecidable manual P 1.841 0
CR.STON.BHZ. 2021-12-29T03:09:22.54 3.0 undecidable manual P 8.95 0
IV.MTRA.EHZ. 2021-12-29T03:09:18.86 3.0 undecidable manual Sn 0.53 0
OT.OT17.EHZ. 2021-12-29T03:09:15.81 3.0 positive manual P 1.427 0
IV.MCEL.HHZ. 2021-12-29T03:09:15.79 3.0 undecidable manual P -2.2 0
IV.CMIS.HHZ. 2021-12-29T03:09:08.46 3.0 positive manual P 6.58 0
IV.FRON.EHZ. 2021-12-29T03:08:27.27 3.0 undecidable manual P 2.48 0
IV.ATCC.EHZ. 2021-12-29T03:08:26.88 3.0 undecidable manual P -0.08 0
OX.MARN.HNN. 2021-12-29T03:08:24.54 0.6 undecidable manual S 48 131.3685 54 0.95 41
IV.TREG.EHZ. 2021-12-29T03:08:20.86 0.6 undecidable manual S 51 120.2907 98 -0.31 53
IV.MBAL.EHZ. 2021-12-29T03:08:20.53 0.6 undecidable manual S 36 117.6933 99 0.05 56
IV.MAGA.HHZ. 2021-12-29T03:08:19.83 0.6 undecidable manual S 27 115.4955 99 -0.08 56
IV.MDI.HHZ. 2021-12-29T03:08:18.72 0.6 undecidable manual S 350 104.0181 100 1.83 27
ST.ZIAN.EHZ. 2021-12-29T03:08:16.64 0.3 undecidable manual P 38 201.7425 54 0.06 60
IV.CNCS.EHZ. 2021-12-29T03:08:13.06 0.6 undecidable manual S 13 86.5467 102 0.75 50
ST.PANI.EHZ. 2021-12-29T03:08:12.46 0.3 undecidable manual P 38 171.0954 54 -0.31 67
IV.SGAL.EHZ. 2021-12-29T03:08:11.74 0.6 undecidable manual S 19 84.1491 102 0.07 60
GU.SARM.EHN. 2021-12-29T03:08:11.74 0.6 undecidable manual S 154 81.4518 103 0.75 48
IV.MTRZ.HNN. 2021-12-29T03:08:10.23 0.3 undecidable manual P 117 130.1697 54 2.55 16
IV.CRMI.HHZ. 2021-12-29T03:08:10.72 0.3 undecidable manual P 145 142.0467 54 1.56 43
IV.MOCL.EHZ. 2021-12-29T03:08:10.26 1.0 undecidable manual P 134 134.6652 54 2.03 10
ST.DOSS.HHZ. 2021-12-29T03:08:09.80 0.3 undecidable manual P 39 149.5392 54 -0.28 74
SI.LUSI.HHZ. 2021-12-29T03:08:09.03 0.1 undecidable manual P 32 145.3434 54 -0.54 94
ST.RONC.HNZ. 2021-12-29T03:08:08.56 0.3 undecidable manual P 22 135.9639 54 0.16 79
IV.MABI.HHZ. 2021-12-29T03:08:08.85 0.3 undecidable manual P 18 140.8479 54 -0.15 78
IV.ZOVE.EHZ. 2021-12-29T03:08:07.69 0.3 undecidable manual P 60 137.3625 54 -0.88 63
IV.PII.HHZ. 2021-12-29T03:08:07.67 0.3 undecidable manual P 160 132.6672 54 -0.32 77
OX.MARN.HNN. 2021-12-29T03:08:07.30 0.1 undecidable manual P 48 131.3685 54 -0.53 97
ST.VARA.EHZ. 2021-12-29T03:08:07.69 0.3 undecidable manual P 34 130.9689 54 -0.09 81
IV.MSSA.HHZ. 2021-12-29T03:08:07.10 0.6 undecidable manual S 211 68.376 106 -0.49 56
IV.FNVD.HHZ. 2021-12-29T03:08:07.35 0.3 undecidable manual P 129 119.0919 98 1.1 57
IV.TREG.EHZ. 2021-12-29T03:08:05.88 0.1 undecidable manual P 51 120.2907 98 -0.55 100
GU.GORR.HHN. 2021-12-29T03:08:05.30 0.6 undecidable manual S 243 58.7967 109 0.16 62
IV.BAG8.EHE. 2021-12-29T03:08:05.50 0.3 undecidable manual P 20 115.2957 99 -0.17 82
IV.MAGA.HHZ. 2021-12-29T03:08:05.26 0.3 undecidable manual P 27 115.4955 99 -0.44 78
GU.POPM.HHZ. 2021-12-29T03:08:05.06 0.6 undecidable manual P 144 109.2129 99 0.32 53
IV.MBAL.EHZ. 2021-12-29T03:08:05.52 0.3 undecidable manual P 36 117.6933 99 -0.51 76
IV.ZCCA.HNN. 2021-12-29T03:08:04.66 0.3 undecidable manual P 124 97.5246 101 1.69 42
IV.MDI.HHZ. 2021-12-29T03:08:04.63 0.3 undecidable manual P 350 104.0181 100 0.67 75
IV.VOBA.HNN. 2021-12-29T03:08:03.48 0.3 undecidable manual P 26 98.0241 101 0.43 81
IV.ZEN8.HNE. 2021-12-29T03:08:03.73 0.3 undecidable manual P 34 106.5156 100 -0.61 75
IV.SERM.EHZ. 2021-12-29T03:08:03.89 0.6 undecidable manual P 80 106.6155 100 -0.46 53
IV.BDI.HNZ. 2021-12-29T03:08:03.41 0.3 undecidable manual P 150 100.6215 100 -0.03 87
GU.RNCA.HHE. 2021-12-29T03:08:02.14 0.6 undecidable manual P 243 89.6436 102 0.36 56
IV.SARZ.HHN. 2021-12-29T03:08:01.70 0.3 undecidable manual P 272 82.1511 103 1.06 66
IV.CNCS.EHZ. 2021-12-29T03:08:01.95 0.3 undecidable manual P 13 86.5467 102 0.63 78
IV.BOB.HNE. 2021-12-29T03:08:01.30 0.6 undecidable manual S 258 41.0256 117 0.53 59
IV.SGAL.EHZ. 2021-12-29T03:08:01.20 0.3 undecidable manual P 19 84.1491 102 0.25 86
GU.SARM.EHN. 2021-12-29T03:08:00.49 0.3 undecidable manual P 154 81.4518 103 -0.06 91
GU.GRAM.HHZ. 2021-12-29T03:07:59.50 0.6 undecidable manual S 168 40.4262 118 -1.14 46
GU.EQUI.HHN. 2021-12-29T03:07:59.56 1.0 undecidable manual P 168 77.1672 104 -0.34 29
GU.GSCL.HHN. 2021-12-29T03:07:59.68 0.6 undecidable manual P 138 74.2701 104 0.21 58
IV.MSSA.HHZ. 2021-12-29T03:07:58.18 0.3 undecidable manual P 211 68.376 106 -0.41 86
IV.ERBM.EHE. 2021-12-29T03:07:57.81 0.3 undecidable manual P 143 59.496 108 0.52 83
IV.PCN.HNN. 2021-12-29T03:07:57.98 0.6 undecidable manual S 319 27.75 129 0.19 65
GU.GORR.HHN. 2021-12-29T03:07:56.60 0.3 undecidable manual P 243 58.7967 109 -0.58 82
IV.BOB.HNE. 2021-12-29T03:07:54.10 0.3 undecidable manual P 258 41.0256 117 -0.56 85
IV.NEVI.HNN. 2021-12-29T03:07:54.72 0.3 undecidable manual P 136 40.7259 118 0.11 95
GU.GRAM.HHZ. 2021-12-29T03:07:53.18 0.1 undecidable manual P 168 40.4262 118 -1.39 80
IV.PCN.HNN. 2021-12-29T03:07:52.76 0.3 undecidable manual P 319 27.75 129 -0.17 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGAL.EHE. ML:2.0 0.00011285 0.28 AML other m 2021-12-29T03:08:14.45
IV.SGAL.EHN. ML:1.9 0.0001007 0.3 AML other m 2021-12-29T03:08:14.62
IV.MDI.HHE. ML:2.0 0.0000786 0.84 AML other m 2021-12-29T03:08:21.46
IV.MDI.HHN. ML:1.9 0.00007445 0.86 AML other m 2021-12-29T03:08:21.17
IV.MBAL.EHE. ML:2.3 0.0001365 0.32 AML other m 2021-12-29T03:08:22.64
IV.MAGA.HHN. ML:2.4 0.00016849999999999998 0.5 AML other m 2021-12-29T03:08:22.76
IV.MBAL.EHN. ML:2.3 0.0001336 0.54 AML other m 2021-12-29T03:08:22.93
IV.TREG.EHN. ML:2.5 0.000209 1.64 AML other m 2021-12-29T03:08:22.97
IV.TREG.EHE. ML:2.2 0.0001139 0.88 AML other m 2021-12-29T03:08:24.94
IV.MAGA.HHE. ML:2.4 0.00021250000000000002 0.6 AML other m 2021-12-29T03:08:25.91
ST.VARA.EHE. ML:2.6 0.000248 0.42 AML other m 2021-12-29T03:08:27.37
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