Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 28-12-2021 and time 18:29:56 (Italy) in region 2 km N Salsomaggiore Terme (PR)

A magnitude ML 2.4 earthquake occured in region: 2 km N Salsomaggiore Terme (PR), on

  • 28-12-2021 17:29:56 (UTC)
  • 28-12-2021 18:29:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8380, 9.9800 at 21 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 2 19831 19831
Alseno PC 7 4714 24545
Fidenza PR 7 26770 51315
Castell'Arquato PC 9 4713 56028
Fiorenzuola d'Arda PC 12 15297 71325
Pellegrino Parmense PR 12 1048 72373
Lugagnano Val d'Arda PC 12 4116 76489
Vernasca PC 13 2131 78620
Soragna PR 15 4834 83454
Medesano PR 16 10828 94282
Fontevivo PR 16 5597 99879
Noceto PR 16 13001 112880
Fontanellato PR 16 7033 119913
Busseto PR 17 7054 126967
Besenzone PC 17 978 127945
Varano de' Melegari PR 17 2676 130621
Carpaneto Piacentino PC 17 7715 138336
Cadeo PC 18 6118 144454
Cortemaggiore PC 18 4644 149098
Fornovo di Taro PR 19 6100 155198
Gropparello PC 20 2293 157491
Bore PR 20 749 158240

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Parma (192836 inhabitants)
33 Km SE of Piacenza (102191 inhabitants)
33 Km S of Cremona (71901 inhabitants)
54 Km W of Reggio nell'Emilia (171345 inhabitants)
72 Km W of Carpi (70699 inhabitants)
75 Km SE of Pavia (72576 inhabitants)
78 Km W of Modena (184973 inhabitants)
80 Km S of Brescia (196480 inhabitants)
82 Km N of La Spezia (93959 inhabitants)
85 Km N of Carrara (63133 inhabitants)
90 Km N of Massa (69479 inhabitants)
94 Km SE of Milano (1345851 inhabitants)
95 Km E of Genova (586655 inhabitants)
97 Km SE of Sesto San Giovanni (81608 inhabitants)
98 Km S of Bergamo (119381 inhabitants)
100 Km SE of Monza (122671 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 2.4 2021-12-28
17:29:56		 44.8377 9.9803 21 2022-03-30
13:04:30		 Bollettino Sismico Italiano INGV 99714411
Reviewed
Rev100 		ML 2.4 2021-12-28
17:29:56		 44.7555 9.9122 31 2021-12-28
17:55:40		 Sala Sismica INGV-Roma 99083121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-28 17:29:56 ± 0.1
Latitude 44.8377 ± 0.0063
Longitude 9.9803 ± 0.0127
Depth (km) 21 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99714411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1032
Semi-minor axis of confidence ellipse (meter) 299
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 106
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030.0
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 55
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.82113
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 44
Type of magnitude ML
Reference to an origin 99083121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-28 17:55:40

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 47
Type of magnitude ML
Reference to an origin 99714411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-01 15:47:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PP3.EHZ. 2021-12-28T17:31:39.97 3.0 undecidable manual Sg 15.82 0
IV.ARVD.HHZ. 2021-12-28T17:31:23.52 3.0 undecidable manual Sg 11.1 0
IV.ATFO.HHZ. 2021-12-28T17:31:17.69 3.0 undecidable manual Sg 8.91 0
OT.OT17.EHZ. 2021-12-28T17:31:11.49 3.0 undecidable manual Pn -1.4 0
IV.SENI.EHZ. 2021-12-28T17:31:10.69 3.0 undecidable manual Sn -3.77 0
IV.PE3.EHZ. 2021-12-28T17:31:10.65 3.0 undecidable manual Sg 7.51 0
IV.LPEL.HHZ. 2021-12-28T17:31:06.43 3.0 positive manual Pn 6.01 0
IV.CRTC.HHZ. 2021-12-28T17:31:05.91 3.0 undecidable manual Sn -2.32 0
IV.SSFR.HHZ. 2021-12-28T17:31:05.12 3.0 undecidable manual Sn -5.73 0
IV.GUMA.HHZ. 2021-12-28T17:31:02.48 3.0 negative manual Pg 17.540001 0
IV.MNTT.EHZ. 2021-12-28T17:30:56.34 3.0 undecidable manual Pg 9.25 0
IV.OFFI.HHZ. 2021-12-28T17:30:52.53 3.0 undecidable manual Pn 3.7 0
MN.TRI.HHZ. 2021-12-28T17:30:46.12 3.0 undecidable manual Pn 4.87 0
SI.MOSI.HHZ. 2021-12-28T17:30:28.57 0.3 undecidable manual P 12 202.1421 54 1.66 31
ST.ZIAN.EHZ. 2021-12-28T17:30:27.38 0.6 undecidable manual P 37 201.4428 54 0.56 36
IV.ZEN8.EHZ. 2021-12-28T17:30:27.30 0.6 undecidable manual S 33 106.4157 96 0.25 56
IV.CPGN.EHZ. 2021-12-28T17:30:27.57 3.0 undecidable manual Pn -3.3 0
ST.OZOL.EHZ. 2021-12-28T17:30:25.53 1.0 undecidable manual P 25 192.6627 54 -0.19 21
IV.CTI.HHZ. 2021-12-28T17:30:24.46 0.6 undecidable manual P 43 186.8685 54 -0.54 40
IV.SGAL.EHZ. 2021-12-28T17:30:21.80 0.6 undecidable manual S 18 84.5487 98 0.54 55
ST.DOSS.HHZ. 2021-12-28T17:30:20.41 0.3 undecidable manual P 39 149.1396 54 0.1 78
IV.CRMI.HNN. 2021-12-28T17:30:20.38 0.3 undecidable manual P 145 140.1486 95 1.25 52
CH.MUGIO.HHN. 2021-12-28T17:30:18.67 0.6 undecidable manual P 329 140.748 95 -0.55 47
SI.LUSI.HHZ. 2021-12-28T17:30:18.76 0.6 undecidable manual P 31 145.3434 54 -1.07 38
ST.RONC.HNE. 2021-12-28T17:30:18.41 1.0 undecidable manual P 21 136.2636 95 -0.12 27
IV.PII.HHZ. 2021-12-28T17:30:17.29 0.3 undecidable manual P 161 131.0688 95 -0.44 76
IV.ZOVE.EHZ. 2021-12-28T17:30:17.61 0.3 undecidable manual P 59 136.2636 95 -0.92 62
ST.VARA.HNZ. 2021-12-28T17:30:17.36 0.6 undecidable manual P 33 130.869 95 -0.34 51
IV.ROVR.HHZ. 2021-12-28T17:30:16.24 0.3 undecidable manual P 43 123.7872 95 -0.37 78
IV.BAG8.EHE. 2021-12-28T17:30:15.31 0.6 undecidable manual P 19 115.6953 96 -0.06 56
GU.MAIM.HHZ. 2021-12-28T17:30:15.76 0.3 undecidable manual P 158 110.3118 96 1.22 56
IV.MAGA.HHE. 2021-12-28T17:30:15.14 0.3 undecidable manual P 26 115.6953 96 -0.22 82
GU.GORR.HHE. 2021-12-28T17:30:15.10 0.3 undecidable manual S 245 59.9955 102 0.31 90
IV.MBAL.HNE. 2021-12-28T17:30:15.39 0.3 undecidable manual P 35 117.4935 96 -0.25 81
OX.BALD.HHZ. 2021-12-28T17:30:15.13 0.6 undecidable manual P 35 114.3966 96 -0.04 57
GU.POPM.HHZ. 2021-12-28T17:30:15.15 0.6 undecidable manual P 145 107.3148 96 1.07 41
IV.MDI.HHE. 2021-12-28T17:30:14.56 0.3 undecidable manual P 349 105.4167 96 0.76 72
IV.BDI.HNZ. 2021-12-28T17:30:13.11 0.6 undecidable manual P 150 98.8233 97 0.33 55
IV.ZEN8.EHZ. 2021-12-28T17:30:13.55 0.3 undecidable manual P 33 106.4157 96 -0.4 80
IV.VOBA.EHZ. 2021-12-28T17:30:13.35 0.3 undecidable manual P 24 98.2239 97 0.66 76
IV.PLMA.HHE. 2021-12-28T17:30:11.32 1.0 undecidable manual P 187 87.9453 98 0.2 29
GU.RNCA.HHE. 2021-12-28T17:30:11.24 1.0 undecidable manual P 244 90.8424 97 -0.32 28
IV.BOB.HNN. 2021-12-28T17:30:10.90 0.3 undecidable manual S 260 42.624 108 0.58 87
IV.SGAL.EHZ. 2021-12-28T17:30:10.18 0.3 undecidable manual P 18 84.5487 98 -0.42 83
GU.SARM.EHN. 2021-12-28T17:30:09.60 0.6 undecidable manual P 155 79.7646 99 -0.27 59
GU.GRAM.HHZ. 2021-12-28T17:30:09.20 0.3 undecidable manual S 170 39.1275 110 -0.23 95
GU.EQUI.HHN. 2021-12-28T17:30:09.26 1.0 undecidable manual P 170 75.7686 99 0 31
GU.GSCL.HHN. 2021-12-28T17:30:08.99 1.0 undecidable manual P 138 72.2721 100 0.26 29
IV.PCN.EHZ. 2021-12-28T17:30:07.40 0.6 undecidable manual S 318 29.748 118 0.26 65
IV.ERBM.EHN. 2021-12-28T17:30:07.27 0.3 undecidable manual P 144 57.5979 103 0.76 77
IV.MSSA.HHZ. 2021-12-28T17:30:07.30 0.3 undecidable manual P 212 68.4759 100 -0.85 74
GU.GORR.HHE. 2021-12-28T17:30:06.33 0.3 undecidable manual P 245 59.9955 102 -0.54 85
IV.BOB.HNN. 2021-12-28T17:30:03.89 0.3 undecidable manual P 260 42.624 108 -0.4 91
GU.GRAM.HHZ. 2021-12-28T17:30:03.03 0.3 undecidable manual P 170 39.1275 110 -0.74 82
IV.PCN.EHZ. 2021-12-28T17:30:02.54 0.3 undecidable manual P 318 29.748 118 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHN. ML:2.6 0.00123 1.6 AML other m 2021-12-28T17:30:09.00
IV.PCN.EHN. ML:2.2 0.0007055 0.44 AML other m 2021-12-28T17:30:10.61
IV.PCN.HNN. ML:2.2 0.0007019999999999999 0.44 AML other m 2021-12-28T17:30:10.61
GU.GRAM.HHE. ML:2.4 0.0007675 0.38 AML other m 2021-12-28T17:30:11.19
IV.PCN.HNE. ML:2.0 0.00043255204999999996 0.2816 AML other m 2021-12-28T17:30:10.89
IV.PCN.EHE. ML:2.0 0.00037159964999999997 0.2816 AML other m 2021-12-28T17:30:10.89
IV.MSSA.HHN. ML:2.2 0.00027249999999999996 0.14 AML other m 2021-12-28T17:30:17.80
IV.MSSA.HHE. ML:2.4 0.00038500000000000003 0.12 AML other m 2021-12-28T17:30:17.86
IV.SGAL.EHE. ML:2.3 0.00023449999999999998 0.38 AML other m 2021-12-28T17:30:24.54
IV.SGAL.EHN. ML:2.2 0.00021400000000000002 0.2 AML other m 2021-12-28T17:30:24.56
IV.VOBA.HNN. ML:2.7 0.000585 1.26 AML other m 2021-12-28T17:30:28.20
IV.VOBA.EHN. ML:2.4 0.00023999999999999998 0.88 AML other m 2021-12-28T17:30:28.21
IV.VOBA.HNE. ML:2.8 0.000712 0.64 AML other m 2021-12-28T17:30:28.30
IV.VOBA.EHE. ML:2.5 0.0003205 0.64 AML other m 2021-12-28T17:30:28.31
IV.ZEN8.EHN. ML:1.7 0.00004515 0.32 AML other m 2021-12-28T17:30:28.95
IV.ZEN8.EHE. ML:1.9 0.00007115000000000001 0.38 AML other m 2021-12-28T17:30:29.20
IV.MDI.HHN. ML:2.4 0.000236 0.34 AML other m 2021-12-28T17:30:31.27
IV.MBAL.EHN. ML:2.4 0.000179 0.28 AML other m 2021-12-28T17:30:31.91
IV.MBAL.EHE. ML:2.5 0.00023999999999999998 0.38 AML other m 2021-12-28T17:30:32.46
IV.MAGA.HHN. ML:2.6 0.0003045 0.52 AML other m 2021-12-28T17:30:32.75
IV.MDI.HHE. ML:2.4 0.0002185 1.18 AML other m 2021-12-28T17:30:32.68
IV.ROVR.HHN. ML:2.6 0.0003025 0.28 AML other m 2021-12-28T17:30:33.47
IV.ROVR.HHE. ML:2.4 0.000157 0.38 AML other m 2021-12-28T17:30:33.54
IV.BDI.HHE. ML:2.3 0.000192 1.2 AML other m 2021-12-28T17:30:34.10
IV.ROVR.HNN. ML:2.7 0.00035350000000000003 0.64 AML other m 2021-12-28T17:30:34.47
IV.BDI.HHN. ML:2.1 0.00013000000000000002 0.34 AML other m 2021-12-28T17:30:34.44
IV.ROVR.HNE. ML:2.5 0.00023899999999999998 0.58 AML other m 2021-12-28T17:30:35.32
IV.MAGA.HHE. ML:2.8 0.00045900000000000004 0.54 AML other m 2021-12-28T17:30:35.57
IV.PII.HHN. ML:2.2 0.00010085 0.6 AML other m 2021-12-28T17:30:36.39
ST.RONC.EHE. ML:2.8 0.0003785 1.44 AML other m 2021-12-28T17:30:36.11
IV.PII.HHE. ML:2.2 0.00009234999999999998 0.7 AML other m 2021-12-28T17:30:37.63
ST.VARA.EHE. ML:2.8 0.000424 0.4 AML other m 2021-12-28T17:30:37.54
ST.RONC.EHN. ML:2.8 0.0003875 0.26 AML other m 2021-12-28T17:30:37.93
SI.LUSI.HHN. ML:2.9 0.000421 1.62 AML other m 2021-12-28T17:30:38.89
SI.LUSI.HHE. ML:2.7 0.0002635 0.32 AML other m 2021-12-28T17:30:38.76
ST.DOSS.HHE. ML:2.3 0.0000983 1.62 AML other m 2021-12-28T17:30:39.87
ST.DOSS.HHN. ML:2.1 0.00007125000000000001 1.08 AML other m 2021-12-28T17:30:40.45
IV.CTI.HHN. ML:2.5 0.000112 0.62 AML other m 2021-12-28T17:30:50.48
IV.CTI.HHE. ML:2.3 0.0000627 0.44 AML other m 2021-12-28T17:30:50.47
ST.OZOL.EHN. ML:2.4 0.00008365 1.62 AML other m 2021-12-28T17:30:51.03
ST.OZOL.EHE. ML:2.6 0.0001146 0.38 AML other m 2021-12-28T17:30:54.29
SI.MOSI.HHE. ML:2.4 0.00006375 1.6 AML other m 2021-12-28T17:30:54.11
ST.VARA.EHN. ML:1.9 0.000048349999999999996 1.58 AML other m 2021-12-28T17:30:56.05
SI.MOSI.HHN. ML:2.5 0.00008735 0.44 AML other m 2021-12-28T17:30:58.64
IV.SSFR.HHE. ML:3.1 0.00020850000000000003 0.06 AML other m 2021-12-28T17:31:08.35
IV.ATFO.HHN. ML:2.4 0.000039649999999999995 0.46 AML other m 2021-12-28T17:31:39.72
IV.ATFO.HHE. ML:2.6 0.0000673 1.46 AML other m 2021-12-28T17:31:40.99
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