Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 04-05-2012 and time 09:23:39 (Italy) in region 4 km S Sabbioneta (MN)

A magnitude ML 2.1 earthquake occured in region: 4 km S Sabbioneta (MN), on

  • 04-05-2012 07:23:39 (UTC)
  • 04-05-2012 09:23:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.9630, 10.4780 at 34 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.

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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
Sabbioneta MN 4 4251 4251
Viadana MN 5 19926 24177
Mezzani PR 5 3273 27450
Casalmaggiore CR 6 15351 42801
Rivarolo del Re ed Uniti CR 7 1991 44792
Brescello RE 7 5617 50409
Boretto RE 9 5272 55681
Colorno PR 9 8991 64672
Martignana di Po CR 9 2036 66708
Pomponesco MN 10 1701 68409
Commessaggio MN 10 1094 69503
Spineda CR 11 611 70114
Gussola CR 12 2772 72886
Torrile PR 12 7698 80584
Rivarolo Mantovano MN 13 2576 83160
Sorbolo PR 13 9544 92704
Dosolo MN 13 3440 96144
Casteldidone CR 13 586 96730
Gualtieri RE 14 6556 103286
Poviglio RE 14 7311 110597
Gazzuolo MN 15 2324 112921
Guastalla RE 15 15225 128146
San Giovanni in Croce CR 15 1905 130051
Torricella del Pizzo CR 16 618 130669
San Martino dall'Argine MN 16 1751 132420
Bozzolo MN 16 4183 136603
Solarolo Rainerio CR 16 958 137561
Tornata CR 16 448 138009
Luzzara RE 17 9250 147259
Scandolara Ravara CR 17 1413 148672
Sissa Trecasali PR 17 7890 156562
Gattatico RE 17 5837 162399
San Martino del Lago CR 18 437 162836
Castelnovo di Sotto RE 18 8462 171298
Marcaria MN 18 6674 177972
Calvatone CR 19 1208 179180
Motta Baluffi CR 20 926 180106

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Parma (192836 inhabitants)
32 Km NW of Reggio nell'Emilia (171345 inhabitants)
38 Km NW of Carpi (70699 inhabitants)
40 Km E of Cremona (71901 inhabitants)
50 Km NW of Modena (184973 inhabitants)
62 Km E of Piacenza (102191 inhabitants)
67 Km SW of Verona (258765 inhabitants)
67 Km SE of Brescia (196480 inhabitants)
86 Km NW of Bologna (386663 inhabitants)
91 Km W of Ferrara (133155 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 2.1 2012-05-04
07:23:39		 44.9652 10.4768 35 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1257731
Bulletin
Rev1000 		ML 2.1 2012-05-04
07:23:39		 44.9627 10.4777 35 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 2471851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-04 07:23:39 ± 0.14
Latitude 44.9627 ± 0.0117
Longitude 10.4777 ± 0.0216
Depth (km) 35 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 2471851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1749
Semi-minor axis of confidence ellipse (meter) 1210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 1750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.23023
Epicentral distance of station farthest from the epicenter (degree) 0.81928
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 2471851
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:40:17

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 0
Type of magnitude ML
Reference to an origin 1257731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-04 07:42:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ROVR.HHZ. 2012-05-04T07:24:07.14 0.3 undecidable manual S 31 88.9443 0.23 69
IV.MAGA.HHZ. 2012-05-04T07:24:07.66 0.3 undecidable manual S 7 90.9423 0.33 68
IV.BOB.HHZ. 2012-05-04T07:24:06.59 0.6 undecidable manual S 255 83.7495 0.82 39
IV.SALO.HHZ. 2012-05-04T07:24:03.22 1.0 undecidable manual S 3 72.8715 0.22 24
IV.ERBM.EHZ. 2012-05-04T07:24:00.33 0.6 undecidable manual S 185 60.495 0.37 48
IV.MAGA.HHZ. 2012-05-04T07:23:55.44 0.1 undecidable manual P 7 90.9423 -0.32 91
IV.ZCCA.HHZ. 2012-05-04T07:23:54.66 0.3 undecidable manual P 150 78.4659 0.59 65
IV.BOB.HHZ. 2012-05-04T07:23:54.79 0.3 undecidable manual P 255 83.7495 -0.06 73
IV.ROVR.HHZ. 2012-05-04T07:23:54.87 0.3 undecidable manual P 31 88.9443 -0.64 63
IV.SALO.HHZ. 2012-05-04T07:23:53.50 0.3 undecidable manual P 3 72.8715 0.24 72
IV.NOVE.EHZ. 2012-05-04T07:23:53.01 0.1 undecidable manual S 134 26.1516 0.46 100
IV.PRMA.HHZ. 2012-05-04T07:23:52.48 0.6 undecidable manual S 210 25.5522 0.03 55
IV.ERBM.EHZ. 2012-05-04T07:23:51.12 0.1 undecidable manual P 185 60.495 -0.38 95
IV.NOVE.EHZ. 2012-05-04T07:23:46.54 0.3 undecidable manual P 134 26.1516 -0.68 69
IV.PRMA.HHZ. 2012-05-04T07:23:46.67 0.3 undecidable manual P 210 25.5522 -0.5 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PRMA.HHE. ML:1.8 0.00020750000000000003 1.18 AML other m 2012-05-04T07:23:54.17
IV.PRMA.HHN. ML:2.0 0.0003005 0.86 AML other m 2012-05-04T07:23:53.24
IV.SALO.HHN. ML:2.1 0.0001875 1.4 AML other m 2012-05-04T07:24:05.28
IV.SALO.HHE. ML:2.1 0.00016399999999999997 1.2 AML other m 2012-05-04T07:24:06.16
IV.ROVR.HHE. ML:2.1 0.000133 1.14 AML other m 2012-05-04T07:24:08.44
IV.MAGA.HHN. ML:2.1 0.000122 0.84 AML other m 2012-05-04T07:24:09.54
IV.MAGA.HHE. ML:2.2 0.000167 0.78 AML other m 2012-05-04T07:24:09.57
IV.ROVR.HHN. ML:2.4 0.000255 0.2 AML other m 2012-05-04T07:24:10.11
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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