Earthquake with magnitude of ML 2.1 on date 17-12-2021 and time 03:55:57 (Italy) in region 3 km E Prignano sulla Secchia (MO)

A magnitude ML 2.1 earthquake occured in region: 3 km E Prignano sulla Secchia (MO), on

  • 17-12-2021 02:55:57 (UTC)
  • 17-12-2021 03:55:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4410, 10.7250 at 28 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 3 3747 3747
Serramazzoni MO 6 8282 12029
Castellarano RE 8 15232 27261
Polinago MO 11 1672 28933
Baiso RE 12 3315 32248
Montefiorino MO 12 2203 34451
Sassuolo MO 12 40853 75304
Fiorano Modenese MO 13 17160 92464
Pavullo nel Frignano MO 14 17383 109847
Viano RE 15 3374 113221
Palagano MO 15 2194 115415
Lama Mocogno MO 15 2734 118149
Maranello MO 15 17359 135508
Toano RE 15 4463 139971
Carpineti RE 16 4064 144035
Casalgrande RE 17 19310 163345
Formigine MO 18 34323 197668
Scandiano RE 18 25483 223151
Guiglia MO 19 3931 227082
Castelvetro di Modena MO 19 11185 238267
Marano sul Panaro MO 19 5060 243327
Casina RE 20 4504 247831

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Modena (184973 inhabitants)
30 Km S of Reggio nell'Emilia (171345 inhabitants)
40 Km SW of Carpi (70699 inhabitants)
49 Km W of Bologna (386663 inhabitants)
51 Km SE of Parma (192836 inhabitants)
58 Km N of Pistoia (90315 inhabitants)
64 Km NE of Carrara (63133 inhabitants)
65 Km NE of Massa (69479 inhabitants)
69 Km N of Lucca (89046 inhabitants)
69 Km NW of Prato (191150 inhabitants)
74 Km NE of Viareggio (62467 inhabitants)
79 Km W of Imola (69797 inhabitants)
80 Km E of La Spezia (93959 inhabitants)
83 Km SW of Ferrara (133155 inhabitants)
84 Km NW of Scandicci (50609 inhabitants)
85 Km NE of Pisa (89158 inhabitants)
86 Km NW of Firenze (382808 inhabitants)
94 Km W of Faenza (58541 inhabitants)
95 Km SE of Cremona (71901 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.1 2021-12-17
02:55:57
44.4412 10.7253 28 2022-03-30
13:04:29
Bollettino Sismico Italiano INGV 99685071
Reviewed
Rev100
ML 2.2 2021-12-17
02:55:57
44.4023 10.6998 32 2021-12-17
03:13:20
Sala Sismica INGV-Roma 98607671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-17 02:55:57 ± 0.12
Latitude 44.4412 ± 0.0099
Longitude 10.7253 ± 0.0151
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99685071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1144
Semi-minor axis of confidence ellipse (meter) 935
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 95
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) 77
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.13310
Epicentral distance of station farthest from the epicenter (degree) 2.26809
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 99685071
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-14 17:02:32

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 57
Type of magnitude ML
Reference to an origin 98607671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-17 03:13:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
RD.PGF.BHZ. 2021-12-17T02:56:35.17 0.3 undecidable manual P 214 2.2681 54 1.31 20
IV.RUFI.EHZ. 2021-12-17T02:56:25.89 0.6 undecidable manual S 137 0.8247 102 1.16 30
ST.RONC.EHZ. 2021-12-17T02:56:24.56 0.3 undecidable manual P 357 1.5396 54 0.75 45
SI.LUSI.HHZ. 2021-12-17T02:56:23.43 0.3 undecidable manual P 6 1.5252 54 -0.17 53
ST.VARA.EHZ. 2021-12-17T02:56:22.10 0.3 undecidable manual P 5 1.3895 54 0.37 55
ST.DOSS.HHZ. 2021-12-17T02:56:22.23 0.3 undecidable manual P 13 1.4758 54 -0.68 47
GU.RNCA.HHZ. 2021-12-17T02:56:21.71 0.3 undecidable manual P 272 1.2662 54 1.69 30
IV.MAGA.HHZ. 2021-12-17T02:56:21.21 0.1 undecidable manual P 357 1.3355 54 0.23 77
IV.MBAL.EHZ. 2021-12-17T02:56:20.17 0.3 undecidable manual P 4 1.2591 54 0.24 59
IV.ROVR.HHZ. 2021-12-17T02:56:18.59 0.3 undecidable manual P 11 1.2294 54 -0.93 46
IV.ZEN8.EHZ. 2021-12-17T02:56:18.34 0.3 undecidable manual P 0 1.1961 54 -0.72 51
IV.TEOL.HHZ. 2021-12-17T02:56:17.20 0.3 undecidable manual P 36 1.1385 54 -1.07 44
GU.GORR.HHN. 2021-12-17T02:56:17.70 0.3 undecidable manual P 280 1.0342 99 0.99 48
IV.ZOVE.EHZ. 2021-12-17T02:56:17.28 0.3 undecidable manual P 28 1.1466 54 -1.09 44
IV.TREG.EHZ. 2021-12-17T02:56:17.12 0.3 undecidable manual P 16 1.1242 54 -0.94 47
IV.SFI.EHZ. 2021-12-17T02:56:16.74 0.3 undecidable manual P 123 0.9659 100 1.18 44
IV.BOB.HNE. 2021-12-17T02:56:16.93 0.3 undecidable manual P 290 0.9659 100 1.37 40
GU.CARD.HHZ. 2021-12-17T02:56:13.96 0.6 undecidable manual S 203 0.4497 113 -0.13 48
IV.RUFI.EHZ. 2021-12-17T02:56:12.71 0.3 undecidable manual P 137 0.8247 102 -0.47 62
IV.BDI.HHZ. 2021-12-17T02:56:12.26 0.6 undecidable manual S 194 0.3894 117 -0.2 48
GU.POPM.HHZ. 2021-12-17T02:56:12.91 0.6 undecidable manual S 177 0.3966 116 0.26 47
IV.FNVD.HHE. 2021-12-17T02:56:12.27 0.6 undecidable manual S 134 0.3939 116 -0.32 47
IV.PLMA.HHZ. 2021-12-17T02:56:11.77 0.1 undecidable manual P 238 0.7365 103 0.06 91
IV.SERM.EHN. 2021-12-17T02:56:11.44 0.6 undecidable manual P 35 0.6979 104 0.37 44
IV.MPPT.EHN. 2021-12-17T02:56:10.55 0.3 undecidable manual P 151 0.5495 108 1.92 30
IV.MODE.HNE. 2021-12-17T02:56:10.67 0.3 undecidable manual S 40 0.2473 130 1.76 38
GU.GRAM.HHZ. 2021-12-17T02:56:08.02 0.6 undecidable manual P 276 0.4739 112 0.61 42
GU.MAIM.HHZ. 2021-12-17T02:56:08.75 0.3 undecidable manual P 198 0.5540 108 0.05 71
IV.MOCL.EHZ. 2021-12-17T02:56:08.93 0.3 undecidable manual P 143 0.5441 109 0.38 66
IV.ERBM.EHE. 2021-12-17T02:56:08.98 0.6 undecidable manual S 265 0.2239 133 0.57 45
IV.CAVE.HHN. 2021-12-17T02:56:07.45 0.3 undecidable manual P 25 0.4685 112 0.13 72
GU.EQUI.HHZ. 2021-12-17T02:56:07.36 0.3 undecidable manual P 236 0.4928 111 -0.36 68
GU.CARD.HHZ. 2021-12-17T02:56:06.46 0.1 undecidable manual P 203 0.4497 113 -0.57 87
GU.GSCL.HHZ. 2021-12-17T02:56:06.16 0.1 undecidable manual S 227 0.1331 149 -0.54 92
IV.BDI.HHZ. 2021-12-17T02:56:05.56 0.1 negative manual P 194 0.3894 117 -0.53 89
GU.POPM.HHZ. 2021-12-17T02:56:05.82 0.1 undecidable manual P 177 0.3966 116 -0.38 92
IV.FNVD.HHE. 2021-12-17T02:56:05.49 0.3 undecidable manual P 134 0.3939 116 -0.68 63
IV.MODE.HNE. 2021-12-17T02:56:04.25 0.3 undecidable manual P 40 0.2473 130 0.2 74
IV.ERBM.EHE. 2021-12-17T02:56:03.64 0.1 undecidable manual P 265 0.2239 133 -0.12 100
IV.ZCCA.HHZ. 2021-12-17T02:56:03.65 0.1 positive manual P 117 0.2005 137 0.18 100
GU.GSCL.HHZ. 2021-12-17T02:56:02.18 0.1 negative manual P 227 0.1331 149 -0.59 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHN. ML:0.0 0.001165 0.4 AML other m 2021-12-17T02:56:06.44
GU.GSCL.HHE. ML:0.0 0.0009425 0.16 AML other m 2021-12-17T02:56:06.40
IV.ZCCA.HNE. ML:0.0 0.000439 0.32 AML other m 2021-12-17T02:56:10.23
IV.ZCCA.HHE. ML:0.0 0.0003715 0.28 AML other m 2021-12-17T02:56:10.22
IV.ZCCA.HHN. ML:0.0 0.001047 0.34 AML other m 2021-12-17T02:56:10.29
IV.ZCCA.HNN. ML:0.0 0.0010145 0.32 AML other m 2021-12-17T02:56:10.30
IV.BDI.HHN. ML:1.8 0.00016467480000000002 0.3008 AML other m 2021-12-17T02:56:12.56
IV.BDI.HNN. ML:1.8 0.0001494513 0.3504 AML other m 2021-12-17T02:56:12.58
IV.BDI.HNE. ML:1.7 0.00013462360000000002 1.4 AML other m 2021-12-17T02:56:13.33
IV.BDI.HHE. ML:1.6 0.000099906015 0.36 AML other m 2021-12-17T02:56:12.72
GU.POPM.HHE. ML:1.7 0.000123816205 0.4784 AML other m 2021-12-17T02:56:13.28
GU.POPM.HHN. ML:1.6 0.00011504944 0.36 AML other m 2021-12-17T02:56:13.11
GU.CARD.HHN. ML:1.6 0.00010115607500000002 0.1808 AML other m 2021-12-17T02:56:14.17
GU.CARD.HHE. ML:1.6 0.000087341595 0.48 AML other m 2021-12-17T02:56:14.42
IV.ZEN8.EHE. ML:1.4 0.000015533205 0.64 AML other m 2021-12-17T02:56:35.46
IV.ZOVE.EHE. ML:2.4 0.00017510216000000002 0.7808 AML other m 2021-12-17T02:56:35.56
IV.ZEN8.EHN. ML:1.5 0.0000195945 0.5792 AML other m 2021-12-17T02:56:36.00
IV.ZEN8.HNE. ML:2.3 0.00011598663 1.1296 AML other m 2021-12-17T02:56:35.96
IV.MAGA.HHE. ML:2.2 0.000079133755 0.5808 AML other m 2021-12-17T02:56:39.94
ST.DOSS.HNE. ML:2.4 0.00009546908 0.92 AML other m 2021-12-17T02:56:40.04
ST.VARA.EHE. ML:2.4 0.00012251191 0.16 AML other m 2021-12-17T02:56:44.65
ST.VARA.HNN. ML:2.6 0.0001778652 0.4192 AML other m 2021-12-17T02:56:44.86
ST.DOSS.HHN. ML:2.2 0.00005945 0.96 AML other m 2021-12-17T02:56:47.73
ST.RONC.EHE. ML:2.2 0.00006494090499999999 0.2 AML other m 2021-12-17T02:56:48.33
ST.DOSS.HHE. ML:2.1 0.00005345 0.32 AML other m 2021-12-17T02:56:49.05
SI.LUSI.HHN. ML:2.6 0.0001495 0.92 AML other m 2021-12-17T02:56:49.73
SI.LUSI.HHE. ML:2.2 0.00006669012000000001 0.32 AML other m 2021-12-17T02:56:50.93
ST.RONC.EHN. ML:2.4 0.00009120000000000001 0.2 AML other m 2021-12-17T02:56:51.20
ST.RONC.HNE. ML:2.7 0.000189326 1.4592 AML other m 2021-12-17T02:56:56.85
ST.VARA.HNE. ML:2.4 0.000110834 1.2784 AML other m 2021-12-17T02:56:58.20
ST.VARA.EHN. ML:1.5 0.000014942986 0.64 AML other m 2021-12-17T02:56:59.32
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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