Earthquake with magnitude of ML 1.8 on date 20-04-2022 and time 03:47:19 (UTC) in region 5 km SE Prignano sulla Secchia (MO)

A magnitude ML 1.8 earthquake occured in region: 5 km SE Prignano sulla Secchia (MO), on

  • 20-04-2022 03:47:19 (UTC)
  • 20-04-2022 05:47:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3980, 10.7250 at 28 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 5 3747 3747
Polinago MO 6 1672 5419
Serramazzoni MO 6 8282 13701
Montefiorino MO 9 2203 15904
Lama Mocogno MO 10 2734 18638
Palagano MO 10 2194 20832
Pavullo nel Frignano MO 11 17383 38215
Castellarano RE 13 15232 53447
Toano RE 13 4463 57910
Baiso RE 15 3315 61225
Montecreto MO 16 940 62165
Frassinoro MO 17 1926 64091
Sassuolo MO 17 40853 104944
Fiorano Modenese MO 17 17160 122104
Carpineti RE 18 4064 126168
Maranello MO 18 17359 143527
Guiglia MO 19 3931 147458
Viano RE 19 3374 150832
Sestola MO 19 2508 153340
Riolunato MO 19 712 154052

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Modena (184973 inhabitants)
34 Km S of Reggio nell'Emilia (171345 inhabitants)
45 Km SW of Carpi (70699 inhabitants)
50 Km W of Bologna (386663 inhabitants)
54 Km NW of Pistoia (90315 inhabitants)
55 Km SE of Parma (192836 inhabitants)
61 Km NE of Carrara (63133 inhabitants)
61 Km NE of Massa (69479 inhabitants)
64 Km N of Lucca (89046 inhabitants)
65 Km NW of Prato (191150 inhabitants)
70 Km NE of Viareggio (62467 inhabitants)
78 Km E of La Spezia (93959 inhabitants)
79 Km W of Imola (69797 inhabitants)
80 Km NW of Scandicci (50609 inhabitants)
80 Km NE of Pisa (89158 inhabitants)
82 Km NW of Firenze (382808 inhabitants)
86 Km SW of Ferrara (133155 inhabitants)
93 Km W of Faenza (58541 inhabitants)
99 Km SE of Cremona (71901 inhabitants)
100 Km NE of Livorno (159219 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
Reviewed
Rev100
ML 1.8 2022-04-20
03:47:19
44.3977 10.7252 28 2022-04-20
03:57:15
Sala Sismica INGV-Roma 103508141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-20 03:47:19 ± 0.48
Latitude 44.3977 ± 0.0144
Longitude 10.7252 ± 0.0201
Depth (km) 28 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 103508141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1615
Semi-minor axis of confidence ellipse (meter) 886
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 1620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 103508141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-20 03:57:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2022-04-20T03:49:07.04 3.0 undecidable manual Sg 19.07 0
IV.PTRJ.HHZ. 2022-04-20T03:48:20.47 3.0 positive manual Pn 2.12 0
ST.DOSS.HHZ. 2022-04-20T03:48:05.21 3.0 undecidable manual Sn 0.3 0
IV.MAGA.HHZ. 2022-04-20T03:48:02.01 3.0 undecidable manual Sn -0.13 0
GU.BURY.HHZ. 2022-04-20T03:47:58.01 3.0 undecidable manual Pn 1.12 0
IV.MAGA.HHZ. 2022-04-20T03:47:42.99 3.0 negative manual Pn -0.35 0
IV.SALO.HHZ. 2022-04-20T03:47:41.49 3.0 negative manual P 0.13 0
IV.ROVR.HHZ. 2022-04-20T03:47:40.85 3.0 undecidable manual P -0.71 0
GU.GRAM.HHZ. 2022-04-20T03:47:37.50 0.1 undecidable manual S 281 0.4802 111 0.73 75
IV.FNVD.HHZ. 2022-04-20T03:47:33.60 0.1 undecidable manual S 129 0.3660 118 -0.09 99
IV.BDI.HHZ. 2022-04-20T03:47:33.60 0.1 undecidable manual S 196 0.3471 120 0.38 92
GU.POPM.HHZ. 2022-04-20T03:47:33.60 0.1 undecidable manual S 176 0.3534 119 0.23 95
IV.ZCCA.HHZ. 2022-04-20T03:47:30.30 0.1 undecidable manual S 105 0.1853 139 0.81 90
GU.GRAM.HHZ. 2022-04-20T03:47:30.20 1.0 negative manual P 281 0.4802 111 0.84 17
GU.EQUI.HHZ. 2022-04-20T03:47:29.03 0.1 undecidable manual P 241 0.4703 112 -0.17 96
GU.POPM.HHZ. 2022-04-20T03:47:27.02 0.6 negative manual P 176 0.3534 119 -0.38 49
GU.GSCL.HHZ. 2022-04-20T03:47:27.70 0.1 undecidable manual S 244 0.1088 154 -0.53 82
IV.FNVD.HHZ. 2022-04-20T03:47:26.69 1.0 undecidable manual P 129 0.3660 118 -0.89 21
IV.BDI.HHZ. 2022-04-20T03:47:26.94 0.1 negative manual P 196 0.3471 120 -0.37 98
IV.ZCCA.HHZ. 2022-04-20T03:47:24.89 0.1 positive manual P 105 0.1853 139 -0.26 100
GU.GSCL.HHZ. 2022-04-20T03:47:23.94 0.1 undecidable manual P 244 0.1088 154 -0.49 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHN. ML:2.1 0.0005995 0.16 AML other m 2022-04-20T03:47:27.87
GU.GSCL.HHE. ML:2.2 0.0008085 0.18 AML other m 2022-04-20T03:47:27.93
IV.ZCCA.HHE. ML:1.6 0.00017649999999999998 0.32 AML other m 2022-04-20T03:47:31.32
IV.ZCCA.HHN. ML:1.9 0.0003205 0.4 AML other m 2022-04-20T03:47:31.38
GU.POPM.HHE. ML:1.3 0.000052900000000000005 0.5 AML other m 2022-04-20T03:47:33.55
IV.FNVD.HHE. ML:1.4 0.00006419999999999999 1.38 AML other m 2022-04-20T03:47:33.11
IV.BDI.HHN. ML:1.4 0.00006915 0.64 AML other m 2022-04-20T03:47:33.84
IV.FNVD.HHN. ML:1.5 0.00009435 1.66 AML other m 2022-04-20T03:47:33.89
IV.BDI.HHE. ML:1.2 0.00005105 1.46 AML other m 2022-04-20T03:47:34.16
GU.POPM.HHN. ML:1.2 0.000045950000000000006 1.18 AML other m 2022-04-20T03:47:35.81
IV.IMOL.HNN. ML:2.8 0.0009325 1.62 AML other m 2022-04-20T03:47:57.16
IV.IMOL.HNE. ML:2.6 0.000475 1.36 AML other m 2022-04-20T03:47:57.31
IV.ROVR.HHN. ML:2.1 0.00006805 1.24 AML other m 2022-04-20T03:48:00.94
IV.ROVR.HHE. ML:1.9 0.0000439 0.18 AML other m 2022-04-20T03:48:01.49
IV.MAGA.HHE. ML:2.2 0.00006864999999999999 1.38 AML other m 2022-04-20T03:48:04.03
IV.MAGA.HHN. ML:1.9 0.00003815 0.88 AML other m 2022-04-20T03:48:04.01
ST.DOSS.HHE. ML:1.9 0.0000347 0.52 AML other m 2022-04-20T03:48:08.74
ST.DOSS.HHN. ML:1.9 0.0000361 0.52 AML other m 2022-04-20T03:48:18.03
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