Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 25-09-2021 and time 23:59:05 (Italy) in region 2 km W Salsomaggiore Terme (PR)

A magnitude ML 2.2 earthquake occured in region: 2 km W Salsomaggiore Terme (PR), on

  • 25-09-2021 21:59:05 (UTC)
  • 25-09-2021 23:59:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8100, 9.9540 at 31 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
Castell'Arquato PC 8 4713 24544
Pellegrino Parmense PR 9 1048 25592
Vernasca PC 10 2131 27723
Alseno PC 10 4714 32437
Lugagnano Val d'Arda PC 10 4116 36553
Fidenza PR 11 26770 63323
Fiorenzuola d'Arda PC 14 15297 78620
Varano de' Melegari PR 14 2676 81296
Medesano PR 16 10828 92124
Bore PR 16 749 92873
Carpaneto Piacentino PC 18 7715 100588
Fornovo di Taro PR 18 6100 106688
Gropparello PC 18 2293 108981
Noceto PR 18 13001 121982
Varsi PR 18 1230 123212
Fontevivo PR 18 5597 128809
Soragna PR 19 4834 133643
Cadeo PC 19 6118 139761
Fontanellato PR 19 7033 146794
Besenzone PC 20 978 147772

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Parma (192836 inhabitants)
34 Km SE of Piacenza (102191 inhabitants)
37 Km S of Cremona (71901 inhabitants)
55 Km W of Reggio nell'Emilia (171345 inhabitants)
74 Km W of Carpi (70699 inhabitants)
75 Km SE of Pavia (72576 inhabitants)
79 Km N of La Spezia (93959 inhabitants)
79 Km W of Modena (184973 inhabitants)
82 Km N of Carrara (63133 inhabitants)
84 Km S of Brescia (196480 inhabitants)
87 Km N of Massa (69479 inhabitants)
92 Km E of Genova (586655 inhabitants)
95 Km SE of Milano (1345851 inhabitants)
98 Km SE of Sesto San Giovanni (81608 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 2021-09-25
21:59:05		 44.81 9.9535 31 2022-03-30
13:04:09		 Bollettino Sismico Italiano INGV 96312721
Reviewed
Rev100 		ML 2.2 2021-09-25
21:59:05		 44.8288 9.9287 30 2021-09-25
22:22:04		 Sala Sismica INGV-Roma 95880061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-25 21:59:05 ± 0.1
Latitude 44.8100 ± 0.0072
Longitude 9.9535 ± 0.0139
Depth (km) 31 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96312721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1138
Semi-minor axis of confidence ellipse (meter) 534
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
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) 87
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.14129
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 96312721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-23 22:38:48

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 27
Type of magnitude ML
Reference to an origin 95880061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-25 22:22:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT11.EHZ. 2021-09-25T22:00:24.01 3.0 undecidable manual P 0.44 0
IV.TERO.HHZ. 2021-09-25T22:00:03.36 3.0 undecidable manual Pg 8.97 0
IV.RIBO.EHZ.01 2021-09-25T22:00:00.63 3.0 undecidable manual Sn 0.48 0
ST.VARA.EHZ. 2021-09-25T21:59:43.60 0.6 undecidable manual S 33 134.5653 54 0.89 39
SI.ABSI.HHZ. 2021-09-25T21:59:40.75 0.6 undecidable manual P 26 237.6843 54 1.02 21
IV.MBAL.EHZ. 2021-09-25T21:59:39.80 0.6 undecidable manual S 35 121.1898 54 -0.03 52
IV.MDI.HHZ. 2021-09-25T21:59:37.85 0.6 undecidable manual S 350 108.114 54 0.86 40
IV.ZEN8.EHZ. 2021-09-25T21:59:36.41 0.6 undecidable manual S 33 110.112 54 -1.03 39
IV.SALO.HHZ. 2021-09-25T21:59:35.30 0.6 undecidable manual S 26 100.122 103 0.21 53
ST.OZOL.EHZ. 2021-09-25T21:59:35.30 0.6 undecidable manual P 25 196.2591 54 0.71 32
IV.VOBA.EHZ. 2021-09-25T21:59:35.80 0.6 undecidable manual S 25 101.9202 102 0.25 52
IV.CTI.HHZ. 2021-09-25T21:59:33.76 0.3 undecidable manual P 43 190.5648 54 -0.11 59
IV.SGAL.EHZ. 2021-09-25T21:59:32.40 0.6 undecidable manual S 18 88.1451 104 0.43 51
GU.SARM.EHE. 2021-09-25T21:59:30.79 0.6 undecidable manual S 153 77.9664 107 1.45 34
ST.DOSS.HHZ. 2021-09-25T21:59:29.04 0.3 undecidable manual P 39 152.9358 54 -0.14 71
GU.EQUI.HHE. 2021-09-25T21:59:28.80 0.6 undecidable manual S 167 73.1712 108 0.68 49
IV.MABI.HHZ. 2021-09-25T21:59:28.62 0.3 undecidable manual P 17 144.8439 54 0.44 68
SI.LUSI.HHZ. 2021-09-25T21:59:28.28 0.3 undecidable manual P 31 149.0397 54 -0.42 68
ST.VARA.EHZ. 2021-09-25T21:59:26.79 0.1 undecidable manual P 33 134.5653 54 -0.11 100
IV.MSSA.HHE. 2021-09-25T21:59:26.20 0.6 undecidable manual S 212 64.6908 110 0.21 56
IV.BAG8.EHE. 2021-09-25T21:59:24.63 0.3 undecidable manual P 19 119.2917 54 -0.36 74
GU.GORR.HHE. 2021-09-25T21:59:24.60 0.6 undecidable manual S 247 56.7987 113 0.59 51
IV.MBAL.EHZ. 2021-09-25T21:59:24.71 0.3 undecidable manual P 35 121.1898 54 -0.53 71
IV.MAGA.HHE. 2021-09-25T21:59:24.58 0.3 undecidable manual P 26 119.3916 54 -0.43 73
IV.MDI.HHZ. 2021-09-25T21:59:24.18 0.1 undecidable manual P 350 108.114 54 0.58 92
GU.POPM.HHE. 2021-09-25T21:59:24.39 0.6 undecidable manual P 143 106.116 54 1.04 39
IV.ZCCA.HHE. 2021-09-25T21:59:23.51 0.6 undecidable manual P 122 95.5377 103 1.7 28
OX.BALD.HHZ. 2021-09-25T21:59:23.62 0.6 undecidable manual P 35 118.0929 54 -1.23 35
IV.BDI.HHE. 2021-09-25T21:59:22.14 0.6 undecidable manual P 148 97.2249 103 0.08 54
IV.SALO.HHZ. 2021-09-25T21:59:22.51 0.3 undecidable manual P 26 100.122 103 0.01 82
IV.ZEN8.EHZ. 2021-09-25T21:59:22.88 0.3 undecidable manual P 33 110.112 54 -0.98 60
GU.CARD.HHE. 2021-09-25T21:59:22.94 0.6 undecidable manual P 154 96.5256 103 0.98 41
IV.VOBA.EHZ. 2021-09-25T21:59:22.81 0.3 undecidable manual P 25 101.9202 102 0.05 81
IV.BOB.HHE. 2021-09-25T21:59:20.10 1.0 undecidable manual S 263 40.1265 123 0.03 30
IV.PLMA.HHE. 2021-09-25T21:59:20.40 0.6 undecidable manual P 185 84.6486 105 0.21 54
IV.SGAL.EHZ. 2021-09-25T21:59:20.76 0.3 undecidable manual P 18 88.1451 104 0.06 83
GU.SARM.EHE. 2021-09-25T21:59:19.32 0.3 undecidable manual P 153 77.9664 107 0.14 84
GU.EQUI.HHE. 2021-09-25T21:59:18.69 0.3 undecidable manual P 167 73.1712 108 0.21 83
GU.GSCL.HHE. 2021-09-25T21:59:18.96 0.3 undecidable manual P 135 71.4729 108 0.72 73
GU.GRAM.HHZ. 2021-09-25T21:59:18.66 0.3 undecidable manual S 166 36.5412 125 -0.63 78
IV.MSSA.HHE. 2021-09-25T21:59:16.77 0.3 undecidable manual P 212 64.6908 110 -0.48 80
GU.GORR.HHE. 2021-09-25T21:59:15.79 0.3 undecidable manual P 247 56.7987 113 -0.32 84
IV.BOB.HHE. 2021-09-25T21:59:13.29 0.3 undecidable manual P 263 40.1265 123 -0.54 83
GU.GRAM.HHZ. 2021-09-25T21:59:12.32 0.1 undecidable manual P 166 36.5412 125 -1.06 87
IV.NEVI.HNZ. 2021-09-25T21:59:12.73 0.3 undecidable manual P 131 38.0286 124 -0.85 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHN. ML:2.4 0.000758 0.38 AML other m 2021-09-25T21:59:19.30
GU.GRAM.HHE. ML:2.2 0.00047050000000000005 0.38 AML other m 2021-09-25T21:59:20.51
IV.VOBA.HNN. ML:2.6 0.000374 0.92 AML other m 2021-09-25T21:59:28.68
IV.SGAL.EHN. ML:2.0 0.0001155 0.18 AML other m 2021-09-25T21:59:33.76
IV.SGAL.EHE. ML:2.1 0.0001375 1.72 AML other m 2021-09-25T21:59:34.86
IV.VOBA.EHN. ML:2.2 0.00014500000000000003 0.52 AML other m 2021-09-25T21:59:37.25
IV.VOBA.HNE. ML:2.7 0.000455 0.16 AML other m 2021-09-25T21:59:37.68
IV.VOBA.EHE. ML:2.4 0.000216 0.16 AML other m 2021-09-25T21:59:37.69
IV.SALO.HHN. ML:2.2 0.00014700000000000002 0.48 AML other m 2021-09-25T21:59:37.73
IV.ZEN8.EHN. ML:1.6 0.000028899999999999998 1.28 AML other m 2021-09-25T21:59:37.23
IV.ZEN8.EHE. ML:1.7 0.00003845 0.4 AML other m 2021-09-25T21:59:38.71
IV.SALO.HHE. ML:2.1 0.0001245 0.42 AML other m 2021-09-25T21:59:38.93
IV.MDI.HHE. ML:1.9 0.0000693 0.38 AML other m 2021-09-25T21:59:40.27
IV.MDI.HHN. ML:2.2 0.0001205 0.32 AML other m 2021-09-25T21:59:40.41
IV.MBAL.EHN. ML:2.3 0.000128 0.28 AML other m 2021-09-25T21:59:41.08
IV.MBAL.EHE. ML:2.4 0.000168 0.3 AML other m 2021-09-25T21:59:41.93
IV.MABI.HHE. ML:1.7 0.000023149999999999997 0.38 AML other m 2021-09-25T21:59:46.19
IV.MABI.HHN. ML:1.9 0.00003805 0.38 AML other m 2021-09-25T21:59:47.93
SI.LUSI.HHN. ML:2.7 0.000246 0.4 AML other m 2021-09-25T21:59:48.18
SI.LUSI.HHE. ML:2.5 0.0001535 0.38 AML other m 2021-09-25T21:59:48.41
ST.DOSS.HHE. ML:2.1 0.000055400000000000005 0.46 AML other m 2021-09-25T21:59:48.36
IV.SEI.HHE. ML:2.0 0.0000623 1.5 AML other m 2021-09-25T21:59:51.85
ST.DOSS.HHN. ML:2.0 0.000048799999999999994 0.4 AML other m 2021-09-25T21:59:53.45
IV.SEI.HHN. ML:2.2 0.0000847 1.56 AML other m 2021-09-25T21:59:54.16
IV.CTI.HHN. ML:2.3 0.0000608 1.38 AML other m 2021-09-25T21:59:59.77
IV.CTI.HHE. ML:2.2 0.000046949999999999996 0.2 AML other m 2021-09-25T22:00:00.87
ST.OZOL.EHN. ML:2.2 0.000051139999999999995 1.48 AML other m 2021-09-25T22:00:00.14
ST.OZOL.EHE. ML:2.3 0.00006603500000000001 0.56 AML other m 2021-09-25T22:00:04.33
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