Earthquake with magnitude of ML 1.9 on date 22-12-2021 and time 08:50:09 (UTC) in region 3 km W Villanova Marchesana (RO)

A magnitude ML 1.9 earthquake occured in region: 3 km W Villanova Marchesana (RO), on

  • 22-12-2021 08:50:09 (UTC)
  • 22-12-2021 09:50:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.9960, 11.9360 at 11 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
Villanova Marchesana RO 3 942 942
Gavello RO 3 1539 2481
Berra FE 4 4870 7351
Crespino RO 4 1865 9216
Papozze RO 8 1520 10736
Ceregnano RO 8 3635 14371
Villadose RO 9 5099 19470
Pontecchio Polesine RO 10 2223 21693
Guarda Veneta RO 11 1153 22846
Corbola RO 11 2428 25274
Adria RO 12 19746 45020
Jolanda di Savoia FE 13 2985 48005
Bosaro RO 13 1491 49496
Copparo FE 14 16567 66063
Rovigo RO 14 51867 117930
Ro FE 15 3247 121177
Polesella RO 15 4012 125189
Arquà Polesine RO 15 2749 127938
Ariano nel Polesine RO 16 4328 132266
San Martino di Venezze RO 16 3960 136226
Pettorazza Grimani RO 16 1617 137843
Anguillara Veneta PD 16 4451 142294
Boara Pisani PD 17 2555 144849
Formignana FE 18 2785 147634
Frassinelle Polesine RO 19 1442 149076
Villamarzana RO 19 1196 150272
Agna PD 20 3368 153640
Cavarzere VE 20 14193 167833
Costa di Rovigo RO 20 2642 170475
Tresigallo FE 20 4493 174968

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km SE of Rovigo (51867 inhabitants)
31 Km NE of Ferrara (133155 inhabitants)
46 Km S of Padova (210401 inhabitants)
58 Km SW of Venezia (263352 inhabitants)
68 Km NW of Ravenna (159116 inhabitants)
69 Km SE of Vicenza (112953 inhabitants)
73 Km NE of Bologna (386663 inhabitants)
74 Km N of Imola (69797 inhabitants)
79 Km SW of Treviso (83731 inhabitants)
79 Km N of Faenza (58541 inhabitants)
86 Km E of Carpi (70699 inhabitants)
86 Km N of Forlì (117913 inhabitants)
89 Km E of Modena (184973 inhabitants)
89 Km SE of Verona (258765 inhabitants)
99 Km N of Cesena (96758 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 1.9 2021-12-22
08:50:09
44.9963 11.9357 11 2022-03-30
13:04:26
Bollettino Sismico Italiano INGV 99317831
Reviewed
Rev100
ML 1.7 2021-12-22
08:50:09
45.0035 11.9468 10 2021-12-22
09:17:35
Sala Sismica INGV-Roma 98809891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-22 08:50:09 ± 0.29
Latitude 44.9963 ± 0.0063
Longitude 11.9357 ± 0.0191
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99317831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1279
Semi-minor axis of confidence ellipse (meter) 899
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.20329
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 99317831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-06 08:25:52

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 98809891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-22 09:17:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CR.STON.BHZ. 2021-12-22T08:51:40.20 3.0 undecidable manual Pg 12.87 0
GU.CIRO.HHZ. 2021-12-22T08:51:39.13 3.0 undecidable manual Sn -3.98 0
IV.MRLC.HHZ. 2021-12-22T08:51:35.79 3.0 positive manual Pg 1.9 0
IV.MNTT.EHZ. 2021-12-22T08:51:28.27 3.0 undecidable manual Sg -2.53 0
IV.EUCT.HNZ. 2021-12-22T08:51:19.26 3.0 undecidable manual Sg 2.81 0
IV.CELB.HHZ. 2021-12-22T08:50:56.33 3.0 undecidable manual Pg -5.22 0
ST.VARA.EHZ. 2021-12-22T08:50:45.68 0.6 undecidable manual S 319 1.1044 50 0.4 42
ST.PANI.EHZ. 2021-12-22T08:50:45.39 0.6 undecidable manual S 338 1.1340 50 -0.78 36
IV.SFI.HNN. 2021-12-22T08:50:45.09 0.6 undecidable manual S 183 1.0927 50 0.15 44
IV.ZEN8.EHZ. 2021-12-22T08:50:44.22 0.6 undecidable manual S 308 1.0612 50 0.21 44
IV.CTI.HHZ. 2021-12-22T08:50:44.26 0.6 undecidable manual S 349 1.0702 50 -0.01 45
OX.VARN.HNN. 2021-12-22T08:50:42.60 0.6 undecidable manual S 7 1.0027 50 0.34 43
IV.ROVR.HHZ. 2021-12-22T08:50:39.03 0.3 undecidable manual S 317 0.8894 50 0.12 70
IV.CRTC.HHZ. 2021-12-22T08:50:37.76 3.0 undecidable manual P -7.4 0
OX.MARN.HNN. 2021-12-22T08:50:36.90 0.6 undecidable manual S 322 0.8193 50 0.06 48
IV.ASQU.HHE. 2021-12-22T08:50:32.11 0.6 undecidable manual P 185 1.2033 50 0.05 44
ST.VARA.EHZ. 2021-12-22T08:50:30.47 0.3 undecidable manual P 319 1.1044 50 0.11 66
ST.PANI.EHZ. 2021-12-22T08:50:30.96 0.1 undecidable manual P 338 1.1340 50 0.08 88
IV.SFI.HNN. 2021-12-22T08:50:29.31 0.3 undecidable manual P 183 1.0927 50 -0.86 53
IV.CTI.HHZ. 2021-12-22T08:50:29.66 0.3 undecidable manual P 349 1.0702 50 -0.12 67
IV.ZEN8.EHZ. 2021-12-22T08:50:29.56 0.3 undecidable manual P 308 1.0612 50 -0.07 68
OX.VARN.HNN. 2021-12-22T08:50:29.42 0.6 undecidable manual P 7 1.0027 50 0.8 37
IV.ZOVE.EHZ. 2021-12-22T08:50:28.72 0.3 undecidable manual S 326 0.5549 50 -0.29 72
IV.VISG.HHZ. 2021-12-22T08:50:27.32 0.6 undecidable manual P 204 0.8822 50 0.75 39
IV.ROVR.HHZ. 2021-12-22T08:50:26.87 0.1 negative manual P 317 0.8894 50 0.18 91
OX.MARN.HNN. 2021-12-22T08:50:25.52 0.3 undecidable manual P 322 0.8193 50 0.03 72
IV.TEOL.HHZ. 2021-12-22T08:50:24.53 0.6 undecidable manual S 333 0.4092 50 -0.15 51
IV.ZOVE.EHZ. 2021-12-22T08:50:20.85 0.1 negative manual P 326 0.5549 50 -0.12 99
IV.TEOL.HHZ. 2021-12-22T08:50:18.23 0.1 undecidable manual P 333 0.4092 50 -0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZOVE.HNN. ML:2.5 0.0006862654000000001 1.5808 AML other m 2021-12-22T08:50:20.02
IV.TEOL.HHE. ML:1.8 0.0001725 0.76 AML other m 2021-12-22T08:50:26.48
IV.TEOL.HHN. ML:1.6 0.00011098005999999999 0.2816 AML other m 2021-12-22T08:50:26.74
IV.ZOVE.EHN. ML:1.8 0.0001108385 0.1408 AML other m 2021-12-22T08:50:29.04
IV.ZOVE.EHE. ML:1.9 0.0001686622 1.3376 AML other m 2021-12-22T08:50:34.14
ST.PANI.EHE. ML:1.3 0.000015387360000000002 0.9856 AML other m 2021-12-22T08:50:35.03
IV.ZEN8.EHN. ML:1.8 0.0000469001 0.064 AML other m 2021-12-22T08:50:37.85
IV.ZOVE.HNE. ML:2.2 0.00032245215 1.3568 AML other m 2021-12-22T08:50:38.06
IV.ZEN8.EHE. ML:1.7 0.00004149999999999999 0.34 AML other m 2021-12-22T08:50:38.43
ST.VARA.HNN. ML:2.0 0.00007543449999999999 0.5184 AML other m 2021-12-22T08:50:40.38
IV.ROVR.HHN. ML:1.8 0.00006561723 0.1984 AML other m 2021-12-22T08:50:41.63
IV.ROVR.HHE. ML:1.5 0.000033236349999999996 0.2048 AML other m 2021-12-22T08:50:42.17
IV.CTI.HHN. ML:1.7 0.000034365175 0.2368 AML other m 2021-12-22T08:50:44.84
ST.VARA.HNE. ML:2.0 0.000065632802 0.5184 AML other m 2021-12-22T08:50:45.73
IV.CTI.HHE. ML:1.7 0.0000408 0.62 AML other m 2021-12-22T08:50:46.32
ST.PANI.HNN. ML:2.7 0.00031929615 1.2992 AML other m 2021-12-22T08:50:46.68
ST.VARA.EHE. ML:1.9 0.000061976455 0.1408 AML other m 2021-12-22T08:50:46.84
IV.ROVR.HNE. ML:2.2 0.00014712814500000002 1.152 AML other m 2021-12-22T08:50:47.19
IV.ROVR.HNN. ML:2.3 0.0001885666 1.0624 AML other m 2021-12-22T08:50:48.18
ST.PANI.EHN. ML:1.5 0.000020900345 0.7232 AML other m 2021-12-22T08:50:51.78
IV.ZEN8.HNN. ML:3.1 0.0009452600499999999 0.6208 AML other m 2021-12-22T08:50:53.30
ST.VARA.EHN. ML:1.3 0.000016368359999999998 1.0624 AML other m 2021-12-22T08:50:55.02
ST.PANI.HNE. ML:2.1 0.00008984934 0.704 AML other m 2021-12-22T08:50:57.05
IV.ZEN8.HNE. ML:2.3 0.00015183284 0.9216 AML other m 2021-12-22T08:51:10.43
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