Earthquake with magnitude of ML 2.3 on date 31-03-2023 and time 17:30:15 (UTC) in region 2 km NE Villamarzana (RO)

A magnitude ML 2.3 earthquake occured in region: 2 km NE Villamarzana (RO), on

  • 31-03-2023 17:30:15 (UTC)
  • 31-03-2023 19:30:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.0230, 11.7180 at 9 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
Villamarzana RO 2 1196 1196
Arquà Polesine RO 2 2749 3945
Frassinelle Polesine RO 3 1442 5387
Costa di Rovigo RO 4 2642 8029
Bosaro RO 4 1491 9520
Fratta Polesine RO 6 2694 12214
Villanova del Ghebbo RO 7 2022 14236
Polesella RO 7 4012 18248
Pontecchio Polesine RO 8 2223 20471
Rovigo RO 8 51867 72338
Guarda Veneta RO 8 1153 73491
Pincara RO 9 1165 74656
Ro FE 9 3247 77903
Lusia RO 10 3533 81436
San Bellino RO 10 1118 82554
Canaro RO 10 2806 85360
Barbona PD 10 671 86031
Boara Pisani PD 11 2555 88586
Fiesso Umbertiano RO 11 4142 92728
Lendinara RO 12 11873 104601
Ceregnano RO 13 3635 108236
Vescovana PD 13 1821 110057
Sant'Urbano PD 13 2064 112121
Stanghella PD 13 4197 116318
Crespino RO 14 1865 118183
Castelguglielmo RO 14 1580 119763
Granze PD 15 2041 121804
Villadose RO 15 5099 126903
Gavello RO 16 1539 128442
Occhiobello RO 16 11979 140421
Canda RO 16 949 141370
Stienta RO 17 3253 144623
Copparo FE 17 16567 161190
San Martino di Venezze RO 17 3960 165150
Villa Estense PD 17 2212 167362
Bagnolo di Po RO 17 1293 168655
Solesino PD 17 7072 175727
Piacenza d'Adige PD 18 1341 177068
Sant'Elena PD 18 2468 179536
Vighizzolo d'Este PD 19 924 180460
Anguillara Veneta PD 19 4451 184911
Badia Polesine RO 19 10509 195420

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km SW of Rovigo (51867 inhabitants)
22 Km NE of Ferrara (133155 inhabitants)
45 Km S of Padova (210401 inhabitants)
60 Km S of Vicenza (112953 inhabitants)
66 Km NE of Bologna (386663 inhabitants)
67 Km SW of Venezia (263352 inhabitants)
71 Km E of Carpi (70699 inhabitants)
73 Km SE of Verona (258765 inhabitants)
74 Km N of Imola (69797 inhabitants)
75 Km NE of Modena (184973 inhabitants)
77 Km NW of Ravenna (159116 inhabitants)
83 Km SW of Treviso (83731 inhabitants)
83 Km N of Faenza (58541 inhabitants)
93 Km N of Forlì (117913 inhabitants)
93 Km E of Reggio nell'Emilia (171345 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 2.3 2023-03-31
17:30:15
45.023 11.7178 9 2023-03-31
17:38:31
Sala Sismica INGV-Roma 115922201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-31 17:30:15 ± 0.14
Latitude 45.0230 ± 0.0153
Longitude 11.7178 ± 0.0140
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115922201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1853
Semi-minor axis of confidence ellipse (meter) 694
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 153
Circular confidence region, given by single value of horizontal uncertainty (meter) 1850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 210
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.45600
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 15
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 115922201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-31 17:38:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2023-03-31T17:32:11.66 3.0 negative manual Pg 14.58 0
IV.VVLD.HHZ. 2023-03-31T17:32:07.85 3.0 undecidable manual Sg 11.61 0
IV.RCAV.EHZ. 2023-03-31T17:31:57.40 3.0 undecidable manual Sg 4.83 0
IV.GIZZ.HHZ. 2023-03-31T17:31:54.94 3.0 negative manual Pn -4.87 0
IV.SGRT.HHZ. 2023-03-31T17:31:31.40 3.0 undecidable manual Pg 6.09 0
IV.CELB.HHZ. 2023-03-31T17:31:30.09 3.0 undecidable manual Sn -2.35 0
SI.ROSI.HHZ. 2023-03-31T17:31:16.44 3.0 undecidable manual Sg 2.46 0
IV.ATFO.HHZ. 2023-03-31T17:31:15.68 3.0 undecidable manual Sg 0.45 0
GU.SATI.HHZ. 2023-03-31T17:31:14.54 3.0 undecidable manual Pg 13.23 0
IV.BRMO.HHZ. 2023-03-31T17:31:10.59 3.0 undecidable manual Sn 1.48 0
NI.VINO.HHZ. 2023-03-31T17:31:08.91 3.0 undecidable manual Sn -0.23 0
OX.CIMO.HHZ. 2023-03-31T17:31:01.27 3.0 undecidable manual S -0.66 0
ST.OZOL.EHZ. 2023-03-31T17:31:01.94 0.3 undecidable manual S 342 1.4560 50 0.05 59
IV.CELB.HHZ. 2023-03-31T17:30:58.32 3.0 negative manual Pn -0.59 0
IV.MABI.HHZ. 2023-03-31T17:30:57.83 3.0 undecidable manual S -1.58 0
IV.MML1.EHZ. 2023-03-31T17:30:56.94 3.0 negative manual Pg 2.93 0
IV.SNTG.HHZ. 2023-03-31T17:30:56.49 3.0 undecidable manual Pg 4.36 0
ST.ZIAN.EHZ. 2023-03-31T17:30:55.83 0.3 undecidable manual S 355 1.2573 50 -0.16 62
ST.RONC.EHZ. 2023-03-31T17:30:55.18 0.3 undecidable manual S 322 1.2258 50 0.11 64
OX.CAE.HHZ. 2023-03-31T17:30:52.78 3.0 undecidable manual S -2.07 0
SI.LUSI.HHZ. 2023-03-31T17:30:51.07 0.3 undecidable manual S 330 1.0819 50 0.28 64
IV.RIBO.EHZ.01 2023-03-31T17:30:50.43 3.0 undecidable manual Pn -3.35 0
IV.MAGA.HHZ. 2023-03-31T17:30:50.49 0.3 undecidable manual S 315 1.0720 50 -0.02 67
IV.SFI.EHZ. 2023-03-31T17:30:50.26 3.0 undecidable manual S -8.97 0
ST.PANI.EHZ. 2023-03-31T17:30:49.92 0.3 undecidable manual S 345 1.0612 50 -0.25 64
ST.VARA.EHZ. 2023-03-31T17:30:48.32 0.6 undecidable manual S 325 0.9875 50 0.31 43
IV.CTI.HHZ. 2023-03-31T17:30:48.66 0.3 undecidable manual S 357 1.0252 50 -0.47 62
SI.ABSI.HHZ. 2023-03-31T17:30:47.62 3.0 negative manual Pg 1.71 0
ST.DOSS.HHZ. 2023-03-31T17:30:46.34 0.3 undecidable manual S 337 0.9344 50 -0.08 68
NI.VINO.HHZ. 2023-03-31T17:30:45.88 3.0 positive manual Pn 0.06 0
ST.OZOL.EHZ. 2023-03-31T17:30:42.77 0.1 undecidable manual P 342 1.4560 50 0.39 73
IV.ASOL.EHZ. 2023-03-31T17:30:42.36 0.3 undecidable manual S 9 0.7878 50 0.29 68
IV.ROVR.HHZ. 2023-03-31T17:30:41.32 0.3 undecidable manual S 324 0.7707 50 -0.26 68
IV.ORZI.HHZ. 2023-03-31T17:30:41.91 3.0 negative manual P 1.43 0
ST.ZIAN.EHZ. 2023-03-31T17:30:38.88 1.0 undecidable manual P 355 1.2573 50 -0.09 21
ST.RONC.EHZ. 2023-03-31T17:30:38.76 0.1 undecidable manual P 322 1.2258 50 0.32 81
SI.LUSI.HHZ. 2023-03-31T17:30:36.03 1.0 undecidable manual P 330 1.0819 50 0.06 22
OX.CAE.HHZ. 2023-03-31T17:30:35.63 3.0 negative manual P -2.16 0
ST.PANI.EHZ. 2023-03-31T17:30:35.64 0.6 negative manual P 345 1.0612 50 0.03 45
IV.MAGA.HHZ. 2023-03-31T17:30:35.88 1.0 negative manual P 315 1.0720 50 0.07 22
IV.CTI.HHZ. 2023-03-31T17:30:34.92 0.6 undecidable manual P 357 1.0252 50 -0.09 45
OX.VARN.HHZ. 2023-03-31T17:30:34.65 0.1 undecidable manual P 16 1.0054 50 -0.02 91
ST.VARA.EHZ. 2023-03-31T17:30:34.69 0.6 negative manual P 325 0.9875 50 0.33 43
ST.DOSS.HHZ. 2023-03-31T17:30:33.33 1.0 positive manual P 337 0.9344 50 -0.12 23
IV.ASOL.EHZ. 2023-03-31T17:30:31.31 0.1 undecidable manual P 9 0.7878 50 0.37 89
IV.BRIS.HHZ. 2023-03-31T17:30:31.84 3.0 negative manual P -2.84 0
IV.ROVR.HHZ. 2023-03-31T17:30:30.56 0.6 positive manual P 324 0.7707 50 -0.09 47
IV.SERM.EHZ. 2023-03-31T17:30:27.59 0.6 undecidable manual S 268 0.2986 50 0.01 53
IV.TREG.HNZ. 2023-03-31T17:30:25.36 3.0 undecidable manual P -2.26 0
IV.ZOVE.EHZ. 2023-03-31T17:30:24.84 0.1 negative manual P 339 0.4596 50 -0.49 93
IV.FERS.HNZ. 2023-03-31T17:30:23.35 0.3 undecidable manual S 226 0.1736 114 0.33 76
IV.SERM.EHZ. 2023-03-31T17:30:22.06 1.0 undecidable manual P 268 0.2986 50 -0.51 24
IV.FERS.HNZ. 2023-03-31T17:30:19.54 0.1 negative manual P 226 0.1736 114 -0.4 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FERS.EHN. ML:2.3 0.00145 1.52 AML other m 2023-03-31T17:30:23.86
IV.FERS.EHE. ML:2.7 0.003675 0.48 AML other m 2023-03-31T17:30:23.88
IV.ZOVE.EHE. ML:2.1 0.0003325 0.14 AML other m 2023-03-31T17:30:31.83
IV.ZOVE.EHN. ML:2.0 0.000248 0.36 AML other m 2023-03-31T17:30:35.23
IV.TREG.EHN. ML:2.1 0.0002165 0.54 AML other m 2023-03-31T17:30:38.39
IV.TREG.EHE. ML:2.1 0.00022250000000000001 0.64 AML other m 2023-03-31T17:30:40.48
IV.ASOL.HNN. ML:3.0 0.0011400000000000002 0.6 AML other m 2023-03-31T17:30:43.47
IV.ASOL.EHN. ML:2.6 0.0005344999999999999 0.6 AML other m 2023-03-31T17:30:43.47
IV.ASOL.EHE. ML:2.9 0.0009745 0.26 AML other m 2023-03-31T17:30:43.67
IV.ASOL.HNE. ML:3.2 0.001925 0.28 AML other m 2023-03-31T17:30:43.53
IV.ROVR.HHE. ML:2.1 0.00016749999999999998 1.1 AML other m 2023-03-31T17:30:43.39
IV.ROVR.HNN. ML:2.4 0.00028799999999999995 1.68 AML other m 2023-03-31T17:30:43.97
IV.ROVR.HHN. ML:2.4 0.00030400000000000007 1.68 AML other m 2023-03-31T17:30:43.97
IV.ROVR.HNE. ML:2.2 0.00021550000000000003 0.4 AML other m 2023-03-31T17:30:44.19
IV.BRIS.HHN. ML:1.4 0.0000286 0.76 AML other m 2023-03-31T17:30:46.69
IV.BRIS.HHE. ML:1.5 0.00003325 0.42 AML other m 2023-03-31T17:30:46.94
ST.DOSS.HHN. ML:2.1 0.0001185 0.26 AML other m 2023-03-31T17:30:47.55
ST.DOSS.HHE. ML:2.2 0.000146 0.94 AML other m 2023-03-31T17:30:48.72
ST.VARA.EHN. ML:2.5 0.0002485 0.4 AML other m 2023-03-31T17:30:49.72
IV.CTI.HHE. ML:2.6 0.0003535 0.48 AML other m 2023-03-31T17:30:50.44
IV.CTI.HHN. ML:2.5 0.00027550000000000003 0.22 AML other m 2023-03-31T17:30:50.58
ST.VARA.EHE. ML:2.6 0.000339 1.26 AML other m 2023-03-31T17:30:50.09
OX.VARN.HHN. ML:2.2 0.000126 0.42 AML other m 2023-03-31T17:30:51.15
OX.VARN.HNN. ML:2.2 0.000127 0.98 AML other m 2023-03-31T17:30:51.64
ST.PANI.EHE. ML:2.2 0.00010825 0.68 AML other m 2023-03-31T17:30:51.05
SI.LUSI.HHE. ML:2.2 0.0001179 0.14 AML other m 2023-03-31T17:30:52.00
ST.PANI.EHN. ML:2.2 0.0001134 1.84 AML other m 2023-03-31T17:30:52.99
OX.VARN.HNE. ML:2.3 0.000169 0.18 AML other m 2023-03-31T17:30:52.02
OX.VARN.HHE. ML:2.3 0.000176 0.18 AML other m 2023-03-31T17:30:52.02
SI.LUSI.HHN. ML:2.4 0.00020050000000000002 0.14 AML other m 2023-03-31T17:30:53.09
IV.MAGA.HHE. ML:2.5 0.00023999999999999998 0.62 AML other m 2023-03-31T17:30:53.79
IV.MAGA.HHN. ML:2.3 0.000167 0.22 AML other m 2023-03-31T17:30:54.64
OX.CAE.HHN. ML:1.8 0.00004514999999999999 0.44 AML other m 2023-03-31T17:30:54.75
ST.ZIAN.EHN. ML:2.3 0.000116 0.88 AML other m 2023-03-31T17:30:56.33
ST.ZIAN.EHE. ML:2.4 0.000143 0.26 AML other m 2023-03-31T17:30:56.42
OX.CAE.HHE. ML:2.0 0.00007994999999999999 0.42 AML other m 2023-03-31T17:30:57.11
ST.RONC.HNE. ML:3.5 0.0017800000000000003 0.48 AML other m 2023-03-31T17:31:12.09
ST.RONC.HNN. ML:3.1 0.0007384999999999999 0.82 AML other m 2023-03-31T17:31:12.75
SI.ROSI.HHE. ML:2.3 0.00004795000000000001 0.44 AML other m 2023-03-31T17:31:18.27
SI.ROSI.HHN. ML:2.3 0.0000504 0.5 AML other m 2023-03-31T17:31:18.15
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, /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