Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 04-04-2022 and time 17:08:49 (Italy) in region 1 km W Polinago (MO)

A magnitude ML 1.6 earthquake occured in region: 1 km W Polinago (MO), on

  • 04-04-2022 15:08:49 (UTC)
  • 04-04-2022 17:08:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3440, 10.7070 at 22 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
Polinago MO 1 1672 1672
Lama Mocogno MO 4 2734 4406
Palagano MO 5 2194 6600
Montefiorino MO 7 2203 8803
Pavullo nel Frignano MO 10 17383 26186
Prignano sulla Secchia MO 10 3747 29933
Montecreto MO 11 940 30873
Serramazzoni MO 11 8282 39155
Frassinoro MO 12 1926 41081
Toano RE 12 4463 45544
Riolunato MO 13 712 46256
Sestola MO 14 2508 48764
Fanano MO 17 2989 51753
Pievepelago MO 17 2222 53975
Fiumalbo MO 19 1280 55255
Castellarano RE 19 15232 70487
Baiso RE 19 3315 73802
Villa Minozzo RE 19 3750 77552
Carpineti RE 19 4064 81616

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Modena (184973 inhabitants)
40 Km S of Reggio nell'Emilia (171345 inhabitants)
49 Km NW of Pistoia (90315 inhabitants)
51 Km S of Carpi (70699 inhabitants)
53 Km W of Bologna (386663 inhabitants)
56 Km NE of Massa (69479 inhabitants)
57 Km NE of Carrara (63133 inhabitants)
58 Km N of Lucca (89046 inhabitants)
59 Km SE of Parma (192836 inhabitants)
60 Km NW of Prato (191150 inhabitants)
64 Km NE of Viareggio (62467 inhabitants)
74 Km NE of Pisa (89158 inhabitants)
75 Km E of La Spezia (93959 inhabitants)
75 Km NW of Scandicci (50609 inhabitants)
78 Km NW of Firenze (382808 inhabitants)
80 Km W of Imola (69797 inhabitants)
91 Km SW of Ferrara (133155 inhabitants)
94 Km NE of Livorno (159219 inhabitants)
94 Km W of Faenza (58541 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 1.6 2022-04-04
15:08:49		 44.3437 10.7068 22 2022-07-08
12:33:42		 Bollettino Sismico Italiano INGV 102877291
Reviewed
Rev100 		ML 1.6 2022-04-04
15:08:50		 44.3478 10.7168 19 2022-04-04
15:17:21		 Sala Sismica INGV-Roma 102775641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-04 15:08:49 ± 0.28
Latitude 44.3437 ± 0.0117
Longitude 10.7068 ± 0.0126
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102877291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1297
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
Circular confidence region, given by single value of horizontal uncertainty (meter) 1300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
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) 0.48114
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 102775641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-04 15:17:21

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 102877291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-07 13:59:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RNCA.HHZ. 2022-04-04T15:09:35.16 3.0 undecidable manual S 0.17 0
IV.FNVD.HHZ. 2022-04-04T15:09:03.01 0.3 undecidable manual S 120 38.4282 112 -0.21 71
GU.CARD.HHZ. 2022-04-04T15:09:03.89 0.3 undecidable manual S 207 39.5271 111 0.39 70
IV.BDI.HHZ. 2022-04-04T15:09:01.91 0.3 undecidable manual S 196 32.3454 117 0.15 75
GU.SARM.EHE. 2022-04-04T15:09:01.22 0.3 undecidable manual S 234 30.0477 119 0 76
GU.POPM.HHZ. 2022-04-04T15:09:01.79 0.3 undecidable manual S 173 33.3444 116 -0.21 72
IV.ZCCA.HHZ. 2022-04-04T15:09:00.55 0.3 undecidable manual S 88 21.4674 130 1.25 50
GU.GRAM.HHZ. 2022-04-04T15:09:00.48 0.3 undecidable manual P 288 53.4021 105 0.69 62
IV.MOCL.EHZ. 2022-04-04T15:08:59.41 0.3 undecidable manual P 135 53.2023 105 -0.36 67
GU.MAIM.HHZ. 2022-04-04T15:08:59.82 0.3 undecidable manual P 200 50.7159 106 0.42 69
GU.EQUI.HHZ. 2022-04-04T15:08:59.48 0.3 undecidable manual P 246 48.2184 107 0.45 68
IV.ERBM.EHE. 2022-04-04T15:08:59.97 0.3 undecidable manual S 290 24.753 125 -0.05 76
IV.FNVD.HHZ. 2022-04-04T15:08:57.22 0.1 undecidable manual P 120 38.4282 112 -0.38 91
GU.CARD.HHZ. 2022-04-04T15:08:57.70 0.3 undecidable manual P 207 39.5271 111 -0.06 73
GU.SARM.EHE. 2022-04-04T15:08:56.64 0.1 undecidable manual P 234 30.0477 119 0.2 99
GU.POPM.HHZ. 2022-04-04T15:08:56.77 0.3 undecidable manual P 173 33.3444 116 -0.12 73
GU.GSCL.HHZ. 2022-04-04T15:08:56.70 0.1 undecidable manual S 275 9.4794 154 -0.6 92
IV.BDI.HHZ. 2022-04-04T15:08:56.57 0.1 undecidable manual P 196 32.3454 117 -0.19 96
IV.ZCCA.HHZ. 2022-04-04T15:08:55.76 0.1 positive manual P 88 21.4674 130 0.43 95
IV.ERBM.EHE. 2022-04-04T15:08:54.93 0.3 undecidable manual P 290 24.753 125 -0.82 60
GU.GSCL.HHZ. 2022-04-04T15:08:53.94 0.1 negative manual P 275 9.4794 154 -0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BDI.HHE. ML:1.6 0.000135 0.48 AML other m 2022-04-04T15:09:02.53
IV.ZCCA.HNE. ML:1.6 0.00020094999999999998 1.08 AML other m 2022-04-04T15:09:02.23
IV.ZCCA.HHE. ML:1.6 0.00022349999999999998 0.44 AML other m 2022-04-04T15:09:02.78
IV.ZCCA.HNN. ML:1.8 0.00029549999999999997 0.42 AML other m 2022-04-04T15:09:02.81
IV.ZCCA.HHN. ML:1.7 0.0002575 0.4 AML other m 2022-04-04T15:09:02.82
IV.BDI.HHN. ML:1.6 0.00014000000000000001 1.68 AML other m 2022-04-04T15:09:02.96
IV.FNVD.HHN. ML:1.7 0.0001515 0.9 AML other m 2022-04-04T15:09:03.19
GU.POPM.HHE. ML:1.7 0.000177 0.14 AML other m 2022-04-04T15:09:03.32
GU.POPM.HHN. ML:1.8 0.00020050000000000002 0.24 AML other m 2022-04-04T15:09:03.51
GU.CARD.HHE. ML:1.4 0.0000829 0.14 AML other m 2022-04-04T15:09:06.09
GU.CARD.HHN. ML:1.4 0.0000774 0.14 AML other m 2022-04-04T15:09:06.25
IV.MOCL.EHN. ML:1.4 0.00005005 0.76 AML other m 2022-04-04T15:09:07.57
IV.FNVD.HHE. ML:1.5 0.0001029 0.38 AML other m 2022-04-04T15:09:07.26
IV.MOCL.EHE. ML:1.3 0.0000452 1.7 AML other m 2022-04-04T15:09:10.07
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