Earthquake with magnitude of ML 1.8 on date 03-12-2021 and time 00:00:30 (Italy) in region 4 km E Prignano sulla Secchia (MO)

A magnitude ML 1.8 earthquake occured in region: 4 km E Prignano sulla Secchia (MO), on

  • 02-12-2021 23:00:30 (UTC)
  • 03-12-2021 00:00:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4290, 10.7360 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Prignano sulla Secchia MO 4 3747 3747
Serramazzoni MO 5 8282 12029
Castellarano RE 9 15232 27261
Polinago MO 9 1672 28933
Montefiorino MO 12 2203 31136
Pavullo nel Frignano MO 13 17383 48519
Sassuolo MO 13 40853 89372
Baiso RE 13 3315 92687
Lama Mocogno MO 13 2734 95421
Fiorano Modenese MO 14 17160 112581
Palagano MO 14 2194 114775
Maranello MO 15 17359 132134
Toano RE 15 4463 136597
Viano RE 16 3374 139971
Carpineti RE 17 4064 144035
Guiglia MO 18 3931 147966
Casalgrande RE 18 19310 167276
Formigine MO 18 34323 201599
Castelvetro di Modena MO 19 11185 212784
Marano sul Panaro MO 19 5060 217844
Scandiano RE 19 25483 243327
Frassinoro MO 20 1926 245253
Montecreto MO 20 940 246193

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Modena (184973 inhabitants)
31 Km S of Reggio nell'Emilia (171345 inhabitants)
41 Km SW of Carpi (70699 inhabitants)
49 Km W of Bologna (386663 inhabitants)
53 Km SE of Parma (192836 inhabitants)
57 Km N of Pistoia (90315 inhabitants)
64 Km NE of Carrara (63133 inhabitants)
64 Km NE of Massa (69479 inhabitants)
67 Km NW of Prato (191150 inhabitants)
68 Km N of Lucca (89046 inhabitants)
74 Km NE of Viareggio (62467 inhabitants)
78 Km W of Imola (69797 inhabitants)
81 Km E of La Spezia (93959 inhabitants)
83 Km NW of Scandicci (50609 inhabitants)
83 Km SW of Ferrara (133155 inhabitants)
84 Km NE of Pisa (89158 inhabitants)
84 Km NW of Firenze (382808 inhabitants)
93 Km W of Faenza (58541 inhabitants)
96 Km SE of Cremona (71901 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 1.8 2021-12-02
23:00:30
44.4293 10.736 27 2022-03-30
13:04:36
Bollettino Sismico Italiano INGV 100801591
Reviewed
Rev100
ML 1.8 2021-12-02
23:00:30
44.4303 10.6412 28 2021-12-02
23:13:35
Sala Sismica INGV-Roma 98076561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 23:00:30 ± 0.23
Latitude 44.4293 ± 0.0153
Longitude 10.7360 ± 0.0189
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 100801591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1554
Semi-minor axis of confidence ellipse (meter) 1149
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) 1550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.13220
Epicentral distance of station farthest from the epicenter (degree) 1.34718
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 100801591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-09 14:07:42

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 98076561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 23:13:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2021-12-02T23:00:54.06 0.3 undecidable manual P 357 149.5392 54 -0.05 62
IV.TREG.EHZ. 2021-12-02T23:00:51.40 0.6 undecidable manual P 15 125.7741 54 0.24 41
IV.FNVD.HHZ. 2021-12-02T23:00:45.00 0.6 undecidable manual S 133 42.2244 116 -0.04 51
IV.BDI.HHZ. 2021-12-02T23:00:45.35 0.3 undecidable manual S 195 42.1245 116 0.34 73
GU.POPM.HHZ. 2021-12-02T23:00:45.52 0.6 undecidable manual S 178 42.624 116 0.39 48
IV.ERBM.EHZ. 2021-12-02T23:00:42.09 0.6 undecidable manual S 268 25.6521 131 0.77 43
IV.ZCCA.HHZ. 2021-12-02T23:00:42.59 0.6 undecidable manual S 114 20.9679 138 2.16 17
GU.EQUI.HHN. 2021-12-02T23:00:41.63 0.3 undecidable manual P 238 54.7008 110 1.05 55
GU.GSCL.HHZ. 2021-12-02T23:00:39.14 0.3 undecidable manual S 233 14.6742 148 -0.27 76
GU.CARD.HHZ. 2021-12-02T23:00:39.42 0.6 undecidable manual P 204 49.1175 112 -0.34 47
IV.BDI.HHZ. 2021-12-02T23:00:38.46 0.1 negative manual P 195 42.1245 116 -0.34 95
GU.POPM.HHZ. 2021-12-02T23:00:38.40 0.3 undecidable manual P 178 42.624 116 -0.47 69
IV.FNVD.HHZ. 2021-12-02T23:00:38.31 0.1 undecidable manual P 133 42.2244 116 -0.5 92
IV.ZCCA.HHZ. 2021-12-02T23:00:36.44 0.1 negative manual P 114 20.9679 138 0.29 100
IV.ERBM.EHZ. 2021-12-02T23:00:36.42 0.3 undecidable manual P 268 25.6521 131 -0.24 75
GU.GSCL.HHZ. 2021-12-02T23:00:35.13 0.1 negative manual P 233 14.6742 148 -0.42 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHE. ML:1.8 0.00030500000000000004 0.2 AML other m 2021-12-02T23:00:39.44
GU.GSCL.HHN. ML:1.6 0.00020850000000000003 1.08 AML other m 2021-12-02T23:00:39.37
IV.ZCCA.HHN. ML:2.0 0.0004655 0.34 AML other m 2021-12-02T23:00:43.00
IV.ZCCA.HHE. ML:1.6 0.00018765 1.72 AML other m 2021-12-02T23:00:43.05
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