Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.9 on date 25-05-2012 and time 13:56:56 (Italy) in region 5 km W Finale Emilia (MO)

A magnitude ML 2.9 earthquake occured in region: 5 km W Finale Emilia (MO), on

  • 25-05-2012 11:56:56 (UTC)
  • 25-05-2012 13:56:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8350, 11.2360 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza.

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.

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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
Finale Emilia MO 5 15699 15699
San Felice sul Panaro MO 7 10900 26599
Camposanto MO 9 3201 29800
Cento FE 13 35686 65486
Sant'Agostino FE 13 6853 72339
Medolla MO 13 6308 78647
Crevalcore BO 14 13465 92112
Pieve di Cento BO 15 7019 99131
Mirandola MO 15 23875 123006
Bondeno FE 16 14655 137661
Ravarino MO 16 6233 143894
Cavezzo MO 16 7026 150920
San Prospero MO 18 5860 156780
Castello d'Argile BO 18 6550 163330
Mirabello FE 18 3266 166596
Poggio Rusco MN 18 6625 173221
Galliera BO 19 5439 178660
Felonica MN 19 1359 180019
San Giovanni del Dosso MN 19 1248 181267
Bomporto MO 19 10157 191424
Magnacavallo MN 19 1561 192985
Sermide MN 20 6189 199174
San Possidonio MO 20 3619 202793
Calto RO 20 743 203536
San Pietro in Casale BO 20 12202 215738

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Carpi (70699 inhabitants)
30 Km W of Ferrara (133155 inhabitants)
32 Km NE of Modena (184973 inhabitants)
39 Km N of Bologna (386663 inhabitants)
50 Km E of Reggio nell'Emilia (171345 inhabitants)
51 Km SW of Rovigo (51867 inhabitants)
66 Km NW of Imola (69797 inhabitants)
70 Km S of Verona (258765 inhabitants)
72 Km E of Parma (192836 inhabitants)
80 Km NW of Faenza (58541 inhabitants)
81 Km SW of Padova (210401 inhabitants)
83 Km SW of Vicenza (112953 inhabitants)
89 Km NW of Ravenna (159116 inhabitants)
93 Km NW of Forlì (117913 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 2.9 2012-05-25
11:56:57		 44.8493 11.254 9 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1388671
Bulletin
Rev1000 		ML 2.9 2012-05-25
11:56:56		 44.8353 11.2363 9 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza 5894461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-25 11:56:56 ± 0.04
Latitude 44.8353 ± 0.0009
Longitude 11.2363 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> REMO-INGV
Event type earthquake
Origin ID 5894461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 307
Semi-minor axis of confidence ellipse (meter) 119
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.149
Epicentral distance of station closest to the epicenter (degree) 0.01529
Epicentral distance of station farthest from the epicenter (degree) 1.11876
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 5894461
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:47:26

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 0
Type of magnitude ML
Reference to an origin 1388671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-25 12:06:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.CGRP.HHZ. 2012-05-25T11:57:33.56 0.6 undecidable manual S 21 124.1868 0.63 0
IV.MAGA.HHZ. 2012-05-25T11:57:31.83 0.6 undecidable manual S 336 114.5964 0.99 43.57
IV.SALO.HHZ. 2012-05-25T11:57:28.91 0.6 undecidable manual S 328 103.2189 0 2.05
IV.ROVR.HHZ. 2012-05-25T11:57:25.88 0.6 undecidable manual S 352 90.9423 0.87 0.84
IV.TEOL.HHZ. 2012-05-25T11:57:19.57 0.6 undecidable manual S 30 67.7766 0.83 0.54
NI.CGRP.HHZ. 2012-05-25T11:57:17.63 0.6 undecidable manual P 21 124.1868 0.42 0
IV.MAGA.HHZ. 2012-05-25T11:57:16.47 0.6 undecidable manual P 336 114.5964 0.8 29.48
MN.VLC.HHZ. 2012-05-25T11:57:15.25 0.6 undecidable manual P 222 100.9212 0.86 0.61
IV.BDI.HHZ. 2012-05-25T11:57:14.40 0.6 undecidable manual P 211 99.6225 0.4 0.5
IV.SALO.HHZ. 2012-05-25T11:57:14.82 0.6 undecidable manual P 328 103.2189 0.36 0.95
IV.SEI.SHZ. 2012-05-25T11:57:13.71 0.6 undecidable manual P 174 87.1461 1.52 0.62
IV.ROVR.HHZ. 2012-05-25T11:57:12.49 0.6 undecidable manual P 352 90.9423 0.36 0.55
IV.FNVD.HHZ. 2012-05-25T11:57:10.67 0.6 undecidable manual P 187 74.5698 0.84 0.35
IV.MTRZ.HHZ. 2012-05-25T11:57:10.05 0.6 undecidable manual P 165 59.8956 1.62 0.69
IV.ZCCA.HHZ. 2012-05-25T11:57:09.21 0.6 undecidable manual P 201 57.5979 1.11 0.51
IV.TEOL.HHZ. 2012-05-25T11:57:08.77 0.3 undecidable manual P 30 67.7766 -0.02 0.2
IV.FIU.EHZ. 2012-05-25T11:57:07.48 0.6 undecidable manual S 137 29.5482 -0.83 0.32
IV.T0817.EHZ. 2012-05-25T11:57:07.37 0.1 undecidable manual S 45 24.4533 0.14 0.11
IV.T0821.EHZ. 2012-05-25T11:57:07.34 0.6 undecidable manual S 72 25.1526 1.17 0.33
IV.T0814.EHZ. 2012-05-25T11:57:06.10 0.3 undecidable manual S 258 21.6672 -0.34 0.18
IV.MODE.HNZ. 2012-05-25T11:57:04.25 1.0 undecidable manual P 225 32.2455 0.54 0.71
IV.RAVA.EHZ. 2012-05-25T11:57:04.07 0.3 undecidable manual S 227 12.7761 0.22 0.43
IV.T0803.HNZ. 2012-05-25T11:57:03.06 0.1 undecidable manual S 130 11.7771 0.07 0.07
IV.T0805.HNZ. 2012-05-25T11:57:02.91 0.3 undecidable manual S 36 11.4774 -0.09 0.3
IV.FIU.EHZ. 2012-05-25T11:57:02.54 1.0 undecidable manual P 137 29.5482 -0.13 0.51
IV.T0822.EHZ. 2012-05-25T11:57:02.14 0.1 undecidable manual S 92 8.5803 -0.01 0.07
IV.T0816.EHZ. 2012-05-25T11:57:02.36 0.6 undecidable manual P 114 31.2465 -0.31 0.25
IV.T0813.EHZ. 2012-05-25T11:57:01.50 0.1 undecidable manual S 328 5.5944 0.02 0.07
IV.T0817.EHZ. 2012-05-25T11:57:01.70 0.3 undecidable manual P 45 24.4533 -0.34 0.17
IV.T0818.EHZ. 2012-05-25T11:57:01.24 0.3 undecidable manual P 304 19.6692 -0.05 0.14
IV.T0811.EHZ. 2012-05-25T11:57:01.48 0.1 undecidable manual S 188 5.7942 0.03 0.13
IV.T0821.EHZ. 2012-05-25T11:57:01.38 0.3 undecidable manual P 72 25.1526 -0.23 0.15
IV.T0802.HNZ. 2012-05-25T11:57:01.74 0.3 undecidable manual S 316 6.1938 0.07 0.18
IV.T0814.EHZ. 2012-05-25T11:57:01.52 0.6 undecidable manual P 258 21.6672 -0.08 0.26
IV.T0800.HHZ. 2012-05-25T11:57:00.96 0.1 undecidable manual S 31 1.6983 0.09 0.07
IV.RAVA.EHZ. 2012-05-25T11:57:00.28 0.1 undecidable manual P 227 12.7761 0.09 0.06
IV.T0822.EHZ. 2012-05-25T11:56:59.28 0.1 undecidable manual P 92 8.5803 -0.06 0.05
IV.T0805.HNZ. 2012-05-25T11:56:59.59 0.3 undecidable manual P 36 11.4774 -0.07 0.15
IV.T0803.HNZ. 2012-05-25T11:56:59.68 0.3 undecidable manual P 130 11.7771 -0.08 0.14
IV.T0802.HNZ. 2012-05-25T11:56:59.04 0.3 undecidable manual P 316 6.1938 0.01 0.14
IV.T0800.HHZ. 2012-05-25T11:56:58.64 0.1 undecidable manual P 31 1.6983 -0.01 0.05
IV.T0813.EHZ. 2012-05-25T11:56:58.96 0.1 undecidable manual P 328 5.5944 -0.03 0.05
IV.T0811.EHZ. 2012-05-25T11:56:58.83 0.1 undecidable manual P 188 5.7942 -0.07 0.06
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0803.HNN. ML:3.9 0.09225 0.48 AML other m 2012-05-25T11:57:03.54
IV.RAVA.EHE. ML:4.0 0.1128 0.58 AML other m 2012-05-25T11:57:04.31
IV.RAVA.EHN. ML:3.7 0.054450000000000005 0.4 AML other m 2012-05-25T11:57:04.60
IV.T0803.HNE. ML:3.2 0.019100000000000002 0.34 AML other m 2012-05-25T11:57:04.79
IV.SERM.EHE. ML:2.6 0.003315 0.74 AML other m 2012-05-25T11:57:07.40
IV.T0821.HHE. ML:2.9 0.004425 0.5 AML other m 2012-05-25T11:57:07.94
IV.T0819.HNN. ML:3.0 0.005665 0.42 AML other m 2012-05-25T11:57:09.66
IV.T0819.HHN. ML:3.0 0.005574999999999999 0.4 AML other m 2012-05-25T11:57:09.66
IV.T0819.HNE. ML:3.1 0.007465 0.32 AML other m 2012-05-25T11:57:09.55
IV.T0819.HHE. ML:3.1 0.007495 0.34 AML other m 2012-05-25T11:57:09.55
IV.SERM.EHN. ML:2.8 0.005105 0.64 AML other m 2012-05-25T11:57:11.71
IV.NOVE.EHN. ML:3.0 0.002975 0.72 AML other m 2012-05-25T11:57:14.37
IV.T0821.HHN. ML:2.8 0.00394 0.54 AML other m 2012-05-25T11:57:14.40
IV.NOVE.EHE. ML:3.0 0.00312 0.76 AML other m 2012-05-25T11:57:15.18
IV.TEOL.HHN. ML:3.0 0.001595 0.62 AML other m 2012-05-25T11:57:20.66
IV.ZCCA.HNE. ML:2.8 0.00151 1.16 AML other m 2012-05-25T11:57:21.90
IV.ZCCA.HHE. ML:2.9 0.001595 1.14 AML other m 2012-05-25T11:57:21.32
IV.ZCCA.HHN. ML:2.8 0.00127 1.06 AML other m 2012-05-25T11:57:21.65
IV.ZCCA.HNN. ML:2.8 0.0013199999999999998 1.08 AML other m 2012-05-25T11:57:21.66
IV.TEOL.HHE. ML:3.1 0.001985 0.46 AML other m 2012-05-25T11:57:23.03
IV.ROVR.HHN. ML:3.4 0.0031799999999999997 0.4 AML other m 2012-05-25T11:57:26.99
IV.ROVR.HHE. ML:3.2 0.00165 0.42 AML other m 2012-05-25T11:57:29.48
IV.SALO.HHE. ML:3.4 0.002515 0.64 AML other m 2012-05-25T11:57:31.06
IV.SALO.HHN. ML:3.6 0.003555 1.08 AML other m 2012-05-25T11:57:31.48
IV.BDI.HNN. ML:2.9 0.0007975 0.56 AML other m 2012-05-25T11:57:32.63
GU.POPM.HHN. ML:3.0 0.0010329999999999998 1.02 AML other m 2012-05-25T11:57:32.64
IV.BDI.HHN. ML:3.0 0.0009019999999999999 1.04 AML other m 2012-05-25T11:57:32.63
GU.POPM.HHE. ML:2.9 0.0008905 1.02 AML other m 2012-05-25T11:57:33.17
IV.MAGA.HHN. ML:3.9 0.006755 0.48 AML other m 2012-05-25T11:57:33.61
IV.BDI.HNE. ML:2.9 0.0007424999999999999 1.22 AML other m 2012-05-25T11:57:34.59
IV.MAGA.HHE. ML:4.0 0.008855 0.56 AML other m 2012-05-25T11:57:35.19
IV.CRMI.HHN. ML:2.7 0.00036899999999999997 0.52 AML other m 2012-05-25T11:57:35.61
IV.CRMI.HHE. ML:2.8 0.000442 1.58 AML other m 2012-05-25T11:57:35.89
IV.SFI.EHN. ML:2.9 0.0006215 0.64 AML other m 2012-05-25T11:57:36.41
IV.BDI.HHE. ML:2.9 0.0008160000000000001 0.54 AML other m 2012-05-25T11:57:37.55
GU.MAIM.HHN. ML:2.9 0.0005994999999999999 1 AML other m 2012-05-25T11:57:38.09
GU.MAIM.HHE. ML:2.9 0.0006684999999999999 0.62 AML other m 2012-05-25T11:57:38.79
IV.ASQU.HHN. ML:2.9 0.0005525 0.76 AML other m 2012-05-25T11:57:39.37
IV.SFI.EHE. ML:2.8 0.0005585 0.62 AML other m 2012-05-25T11:57:39.25
MN.VLC.HHE. ML:2.5 0.000284 1.54 AML other m 2012-05-25T11:57:40.20
IV.ASQU.HHE. ML:2.8 0.000481 1.18 AML other m 2012-05-25T11:57:40.00
IV.MABI.HHN. ML:2.7 0.0002595 0.44 AML other m 2012-05-25T11:57:40.87
IV.MABI.HHE. ML:2.7 0.000247 0.56 AML other m 2012-05-25T11:57:40.69
MN.VLC.HHN. ML:2.7 0.0004545 0.74 AML other m 2012-05-25T11:57:41.60
IV.PLMA.HHN. ML:2.9 0.0004945 0.34 AML other m 2012-05-25T11:57:43.34
IV.PLMA.HHE. ML:2.8 0.0003355 0.5 AML other m 2012-05-25T11:57:43.12
IV.BRIS.HHE. ML:2.3 0.000273 0.64 AML other m 2012-05-25T11:57:44.07
IV.BRIS.HHN. ML:2.3 0.00028849999999999997 0.92 AML other m 2012-05-25T11:57:44.74
NI.POLC.HHN. ML:3.0 0.0004535 0.54 AML other m 2012-05-25T11:57:48.56
SI.KOSI.HHE. ML:3.0 0.00035499999999999996 0.7 AML other m 2012-05-25T11:57:49.86
SI.KOSI.HHN. ML:3.0 0.0004095 0.54 AML other m 2012-05-25T11:57:51.06
IV.PARC.HHN. ML:2.5 0.00016749999999999998 1.4 AML other m 2012-05-25T11:57:51.45
NI.POLC.HHE. ML:3.0 0.000417 0.52 AML other m 2012-05-25T11:57:52.41
IV.PARC.HHE. ML:2.5 0.00016499999999999997 0.64 AML other m 2012-05-25T11:57:56.31
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