Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.7 on date 20-05-2012 and time 05:07:53 (Italy) in region 5 km E Mirandola (MO)

A magnitude ML 3.7 earthquake occured in region: 5 km E Mirandola (MO), on

  • 20-05-2012 03:07:53 (UTC)
  • 20-05-2012 05:07:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8960, 11.1230 at 6 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Mirandola MO 5 23875 23875
San Felice sul Panaro MO 6 10900 34775
Medolla MO 7 6308 41083
San Giovanni del Dosso MN 9 1248 42331
Poggio Rusco MN 9 6625 48956
Cavezzo MO 10 7026 55982
San Possidonio MO 10 3619 59601
San Giacomo delle Segnate MN 11 1639 61240
Concordia sulla Secchia MO 11 8641 69881
Schivenoglia MN 11 1203 71084
Villa Poma MN 12 2023 73107
Camposanto MO 12 3201 76308
Magnacavallo MN 13 1561 77869
San Prospero MO 14 5860 83729
Finale Emilia MO 15 15699 99428
Pieve di Coriano MN 15 1035 100463
Quistello MN 17 5595 106058
Moglia MN 17 5600 111658
Quingentole MN 17 1203 112861
Novi di Modena MO 17 10247 123108
Carbonara di Po MN 18 1297 124405
Revere MN 18 2521 126926
Borgofranco sul Po MN 18 784 127710
Sermide MN 19 6189 133899
Ravarino MO 19 6233 140132
Crevalcore BO 19 13465 153597
Serravalle a Po MN 19 1541 155138
Ostiglia MN 19 6818 161956
Melara RO 20 1803 163759
Castelnovo Bariano RO 20 2762 166521
Bomporto MO 20 10157 176678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Carpi (70699 inhabitants)
32 Km NE of Modena (184973 inhabitants)
40 Km W of Ferrara (133155 inhabitants)
45 Km E of Reggio nell'Emilia (171345 inhabitants)
48 Km NW of Bologna (386663 inhabitants)
56 Km W of Rovigo (51867 inhabitants)
61 Km S of Verona (258765 inhabitants)
63 Km E of Parma (192836 inhabitants)
76 Km NW of Imola (69797 inhabitants)
80 Km SW of Vicenza (112953 inhabitants)
82 Km SW of Padova (210401 inhabitants)
90 Km E of Cremona (71901 inhabitants)
91 Km NW of Faenza (58541 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
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 3.7 2012-05-20
03:07:56		 44.8763 11.1597 4 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1317491
Bulletin
Rev1000 		ML 3.7 2012-05-20
03:07:53		 44.8958 11.1232 6 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 4882571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-20 03:07:53 ± 0.2
Latitude 44.8958 ± 0.0045
Longitude 11.1232 ± 0.0114
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4882571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 854
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.14029
Epicentral distance of station farthest from the epicenter (degree) 2.07294
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:3.7

Field Value
Value 3.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 4882571
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:47:05

ML:3.7

Field Value
Value 3.7
Uncertainty 0.2
Num. used stations 0
Type of magnitude ML
Reference to an origin 1317491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-20 05:27:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.DAVOX.HHZ. 2012-05-20T03:08:33.74 1.0 undecidable manual P 336 230.0919 38 -0.21 12
SI.MOSI.HHZ. 2012-05-20T03:08:29.17 1.0 undecidable manual P 347 195.9594 38 0.52 14
IV.BRMO.HHZ. 2012-05-20T03:08:26.66 0.6 undecidable manual P 342 184.6707 38 -0.24 32
SI.KOSI.HHZ. 2012-05-20T03:08:24.46 0.6 undecidable manual P 6 174.9915 38 -0.93 27
IV.APPI.EHZ. 2012-05-20T03:08:24.99 0.6 undecidable manual P 3 175.7907 38 -0.53 31
IV.CSNT.HHZ. 2012-05-20T03:08:22.25 0.6 undecidable manual P 175 158.4192 38 -0.56 34
IV.PLMA.HHZ. 2012-05-20T03:08:19.57 0.6 undecidable manual P 227 137.4624 38 0 41
IV.MABI.HHZ. 2012-05-20T03:08:18.71 0.6 undecidable manual P 340 137.0628 38 -0.79 33
IV.CRMI.HHZ. 2012-05-20T03:08:17.41 0.6 undecidable manual P 185 122.5884 38 0.16 41
GU.MAIM.HHZ. 2012-05-20T03:08:17.27 0.6 undecidable manual P 205 119.8911 38 0.44 39
IV.CTL8.EHZ. 2012-05-20T03:08:17.86 0.6 undecidable manual P 292 114.6963 38 1.84 19
NI.CGRP.HHZ. 2012-05-20T03:08:16.75 1.0 undecidable manual P 26 121.4895 38 -0.33 20
IV.BDI.HHE. 2012-05-20T03:08:15.07 0.6 undecidable manual P 204 101.4207 38 1.11 31
IV.LEOD.HNE. 2012-05-20T03:08:15.50 0.6 undecidable manual P 309 100.0221 38 1.75 21
IV.MAGA.HHZ. 2012-05-20T03:08:14.86 0.6 undecidable manual P 339 104.9172 38 0.35 41
IV.BRIS.HHE. 2012-05-20T03:08:13.47 0.3 undecidable manual P 145 90.1431 38 1.25 44
MN.VLC.HHE. 2012-05-20T03:08:13.80 0.3 undecidable manual P 216 100.3218 38 0 66
IV.BOTT.HNE. 2012-05-20T03:08:13.20 0.3 undecidable manual P 319 96.4257 38 0.01 67
IV.PTF.SHZ. 2012-05-20T03:08:13.78 0.6 undecidable manual P 182 103.8183 38 -0.57 38
GU.POPM.HHZ. 2012-05-20T03:08:13.87 0.6 undecidable manual P 197 98.7234 38 0.32 41
IV.VOBA.HNE. 2012-05-20T03:08:13.09 0.6 undecidable manual P 330 95.9262 38 -0.03 44
IV.SEI.SHZ. 2012-05-20T03:08:13.38 0.6 undecidable manual P 169 95.238 38 0.38 41
IV.SANR.HNE. 2012-05-20T03:08:12.50 1.0 undecidable manual P 25 90.8424 38 0.17 22
IV.SALO.HHZ. 2012-05-20T03:08:12.81 0.3 undecidable manual P 330 92.8404 38 0.18 65
IV.IMOL.EHZ. 2012-05-20T03:08:11.87 0.6 undecidable manual P 140 76.9674 38 1.7 23
IV.ROVR.HHZ. 2012-05-20T03:08:11.04 0.3 undecidable manual P 357 83.4498 38 -0.13 67
IV.FNVD.HHZ. 2012-05-20T03:08:10.16 0.6 undecidable manual P 180 80.7636 38 -0.6 40
IV.ERBM.EHE. 2012-05-20T03:08:10.82 0.3 undecidable manual P 227 77.0673 38 0.64 59
IV.MTRZ.HHE. 2012-05-20T03:08:10.17 0.6 undecidable manual P 160 68.8755 38 1.25 30
IV.NOVE.EHE. 2012-05-20T03:08:09.68 0.6 undecidable manual S 251 33.8439 50 -0.65 42
IV.ZOVE.HNE. 2012-05-20T03:08:08.22 0.3 undecidable manual P 25 68.0763 38 -0.58 61
IV.TEOL.HHZ. 2012-05-20T03:08:08.07 0.3 undecidable manual P 40 67.2771 38 -0.6 61
IV.TREG.HNE. 2012-05-20T03:08:08.77 0.6 undecidable manual P 2 69.6747 38 -0.26 44
IV.ZCCA.HHE. 2012-05-20T03:08:08.46 0.6 undecidable manual P 191 61.5939 38 0.68 40
IV.PRMA.HHE. 2012-05-20T03:08:07.75 0.6 undecidable manual P 257 65.3901 38 -0.62 40
IV.MNTV.HNZ. 2012-05-20T03:08:05.01 0.3 undecidable manual P 317 38.4282 50 0.91 57
IV.SBPO.HHE. 2012-05-20T03:08:05.50 0.6 undecidable manual S 317 23.4543 50 -0.31 48
IV.OPPE.HNZ. 2012-05-20T03:08:05.27 0.3 undecidable manual P 5 45.9207 50 -0.71 61
IV.SERM.EHZ. 2012-05-20T03:08:04.40 0.6 undecidable manual S 47 18.5703 107 -0.03 51
IV.FIU.EHE. 2012-05-20T03:08:03.01 0.3 undecidable manual P 134 40.5261 50 -1.63 38
IV.RAVA.EHZ. 2012-05-20T03:08:02.50 0.3 undecidable manual S 181 15.5733 110 -0.26 73
IV.NOVE.EHE. 2012-05-20T03:08:02.03 0.3 undecidable manual P 251 33.8439 50 -0.92 57
IV.SBPO.HHE. 2012-05-20T03:08:01.03 0.3 undecidable manual P 317 23.4543 50 0.67 64
IV.MODE.HNZ. 2012-05-20T03:08:01.99 0.3 undecidable manual P 205 32.5452 50 -0.64 64
IV.SERM.EHZ. 2012-05-20T03:07:59.98 0.3 undecidable manual P 47 18.5703 107 0.4 71
IV.RAVA.EHZ. 2012-05-20T03:07:58.77 0.1 negative manual P 181 15.5733 110 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MAGA.HHE. ML:3.8 0.0061400000000000005 0.34 AML other m 2012-05-20T03:08:30.86
IV.MAGA.HHN. ML:3.9 0.007685000000000001 0.4 AML other m 2012-05-20T03:08:31.35
IV.MODE.HNN. ML:3.7 0.0216 0.52 AML other m 2012-05-20T03:08:21.13
IV.MODE.HNE. ML:3.5 0.014199999999999999 0.52 AML other m 2012-05-20T03:08:21.85
IV.RAVA.EHN. ML:3.9 0.0758 0.28 AML other m 2012-05-20T03:08:04.11
IV.RAVA.EHE. ML:3.7 0.0587 0.56 AML other m 2012-05-20T03:08:08.08
IV.ROVR.HHN. ML:3.7 0.00623 0.42 AML other m 2012-05-20T03:08:25.55
IV.ROVR.HHE. ML:3.4 0.00289 0.92 AML other m 2012-05-20T03:08:25.82
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