Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.8 on date 30-05-2012 and time 06:21:58 (Italy) in region 1 km SW Medolla (MO)

A magnitude ML 2.8 earthquake occured in region: 1 km SW Medolla (MO), on

  • 30-05-2012 04:21:58 (UTC)
  • 30-05-2012 06:21:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8440, 11.0680 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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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Medolla MO 1 6308 6308
Cavezzo MO 3 7026 13334
Mirandola MO 5 23875 37209
San Felice sul Panaro MO 6 10900 48109
San Prospero MO 7 5860 53969
San Possidonio MO 8 3619 57588
Camposanto MO 8 3201 60789
Concordia sulla Secchia MO 10 8641 69430
Bomporto MO 13 10157 79587
Ravarino MO 13 6233 85820
San Giovanni del Dosso MN 14 1248 87068
Bastiglia MO 14 4193 91261
Novi di Modena MO 14 10247 101508
San Giacomo delle Segnate MN 15 1639 103147
Crevalcore BO 15 13465 116612
Poggio Rusco MN 16 6625 123237
Moglia MN 16 5600 128837
Carpi MO 16 70699 199536
Soliera MO 16 15461 214997
Schivenoglia MN 17 1203 216200
Rolo RE 17 4105 220305
Villa Poma MN 18 2023 222328
Finale Emilia MO 18 15699 238027
Nonantola MO 18 15839 253866
Quistello MN 20 5595 259461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Carpi (70699 inhabitants)
25 Km NE of Modena (184973 inhabitants)
38 Km E of Reggio nell'Emilia (171345 inhabitants)
44 Km W of Ferrara (133155 inhabitants)
44 Km NW of Bologna (386663 inhabitants)
59 Km E of Parma (192836 inhabitants)
62 Km W of Rovigo (51867 inhabitants)
67 Km S of Verona (258765 inhabitants)
75 Km NW of Imola (69797 inhabitants)
87 Km SW of Vicenza (112953 inhabitants)
88 Km E of Cremona (71901 inhabitants)
89 Km SW of Padova (210401 inhabitants)
90 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
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.8 2012-05-30
04:21:58		 44.8437 11.0685 9 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza 5901351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-30 04:21:58 ± 0.08
Latitude 44.8437 ± 0.0009
Longitude 11.0685 ± 0.0038
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> REMO-INGV
Event type earthquake
Origin ID 5901351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 574
Semi-minor axis of confidence ellipse (meter) 33
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.0829
Epicentral distance of station closest to the epicenter (degree) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.8

Field Value
Value 2.8
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 5901351
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:47:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0822.EHZ. 2012-05-30T04:22:07.84 0.6 undecidable manual S 93 21.867 -0.06 0.32
IV.T0824.EHZ. 2012-05-30T04:22:06.27 0.3 undecidable manual S 230 14.5743 -0.09 0.17
IV.T0817.EHZ. 2012-05-30T04:22:06.29 1.0 undecidable manual P 62 34.6431 0.74 0.5
IV.T0811.EHZ. 2012-05-30T04:22:05.91 0.6 undecidable manual S 118 14.1747 0.38 0.32
IV.RAVA.EHZ. 2012-05-30T04:22:05.07 0.3 undecidable manual S 158 10.4784 0.04 0.17
IV.T0800.HHZ. 2012-05-30T04:22:05.46 0.6 undecidable manual S 88 14.1747 -0.13 0.32
IV.T0818.EHZ. 2012-05-30T04:22:05.27 0.6 undecidable manual S 343 10.5783 0.19 0.32
IV.T0814.EHZ. 2012-05-30T04:22:04.78 0.3 undecidable manual S 234 9.6792 0.06 0.17
IV.NOVE.EHZ. 2012-05-30T04:22:04.48 0.6 undecidable manual P 260 28.2495 0.03 0.25
IV.T0823.EHZ. 2012-05-30T04:22:04.18 0.6 undecidable manual P 137 24.0537 0.22 0.25
IV.T0802.HNZ. 2012-05-30T04:22:04.92 0.6 undecidable manual S 69 9.5793 0.56 0.32
IV.T0813.EHZ. 2012-05-30T04:22:04.95 0.6 undecidable manual S 70 10.9779 0.27 0.32
IV.T0803.HNZ. 2012-05-30T04:22:03.56 1.0 undecidable manual P 111 23.8539 0.02 0.5
IV.T0805.HNZ. 2012-05-30T04:22:03.06 1.0 undecidable manual P 67 21.6672 -0.07 0.5
IV.T0822.EHZ. 2012-05-30T04:22:03.29 0.3 undecidable manual P 93 21.867 0.03 0.13
IV.T0811.EHZ. 2012-05-30T04:22:02.08 0.3 undecidable manual P 118 14.1747 0.17 0.13
IV.T0824.EHZ. 2012-05-30T04:22:02.39 0.1 negative manual P 230 14.5743 0.01 0.05
IV.T0802.HNZ. 2012-05-30T04:22:01.28 1.0 undecidable manual P 69 9.5793 -0.02 0.5
IV.T0813.EHZ. 2012-05-30T04:22:01.45 0.1 positive manual P 70 10.9779 -0.07 0.05
IV.T0814.EHZ. 2012-05-30T04:22:01.50 0.1 negative manual P 234 9.6792 -0.01 0.05
IV.RAVA.EHZ. 2012-05-30T04:22:01.64 0.1 negative manual P 158 10.4784 -0.02 0.05
IV.T0800.HHZ. 2012-05-30T04:22:01.97 0.3 undecidable manual P 88 14.1747 -0.01 0.13
IV.T0818.EHZ. 2012-05-30T04:22:01.77 0.3 undecidable manual P 343 10.5783 0.12 0.13
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0819.HNE. ML:2.6 0.004625 1.14 AML other m 2012-05-30T04:22:52.04
IV.T0819.HNN. ML:2.6 0.004205 0.26 AML other m 2012-05-30T04:22:52.13
IV.T0819.HHE. ML:2.6 0.004615 1.14 AML other m 2012-05-30T04:22:52.05
IV.T0819.HHN. ML:2.6 0.0041600000000000005 0.26 AML other m 2012-05-30T04:22:52.13
IV.RAVA.EHE. ML:3.0 0.011879999999999998 0.26 AML other m 2012-05-30T04:22:54.58
IV.T0822.EHE. ML:2.9 0.00517 0.2 AML other m 2012-05-30T04:22:51.62
IV.T0822.EHN. ML:2.6 0.002597 0.82 AML other m 2012-05-30T04:22:51.35
IV.ROVR.HHE. ML:2.6 0.0005024999999999999 0.38 AML other m 2012-05-30T04:23:13.04
IV.ROVR.HHN. ML:2.8 0.000834 0.78 AML other m 2012-05-30T04:23:14.06
IV.MAGA.HHE. ML:3.1 0.000998 0.64 AML other m 2012-05-30T04:23:18.94
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