Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 20-05-2012 and time 21:15:08 (UTC) in region 6 km E Finale Emilia (MO)

A magnitude ML 2.3 earthquake occured in region: 6 km E Finale Emilia (MO), on

  • 20-05-2012 21:15:08 (UTC)
  • 20-05-2012 23:15:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8540, 11.3600 at 4 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
Finale Emilia MO 6 15699 15699
Bondeno FE 6 14655 30354
Sant'Agostino FE 7 6853 37207
Mirabello FE 9 3266 40473
Vigarano Mainarda FE 11 7694 48167
Ficarolo RO 12 2438 50605
Galliera BO 14 5439 56044
Poggio Renatico FE 14 9852 65896
Gaiba RO 14 1063 66959
Felonica MN 14 1359 68318
Cento FE 15 35686 104004
Calto RO 15 743 104747
Salara RO 16 1160 105907
Pieve di Cento BO 16 7019 112926
San Pietro in Casale BO 17 12202 125128
San Felice sul Panaro MO 17 10900 136028
Stienta RO 17 3253 139281
Sermide MN 18 6189 145470
Ceneselli RO 18 1719 147189
Castelmassa RO 19 4252 151441
Occhiobello RO 19 11979 163420
Camposanto MO 19 3201 166621
Castello d'Argile BO 20 6550 173171

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km W of Ferrara (133155 inhabitants)
38 Km E of Carpi (70699 inhabitants)
40 Km N of Bologna (386663 inhabitants)
41 Km NE of Modena (184973 inhabitants)
42 Km SW of Rovigo (51867 inhabitants)
60 Km E of Reggio nell'Emilia (171345 inhabitants)
62 Km NW of Imola (69797 inhabitants)
71 Km SE of Verona (258765 inhabitants)
74 Km SW of Padova (210401 inhabitants)
76 Km NW of Faenza (58541 inhabitants)
79 Km S of Vicenza (112953 inhabitants)
82 Km E of Parma (192836 inhabitants)
82 Km NW of Ravenna (159116 inhabitants)
89 Km NW of Forlì (117913 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 2.4 2012-05-20
21:15:09		 44.8867 11.4302 5 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1338071
Bulletin
Rev1000 		ML 2.3 2012-05-20
21:15:08		 44.8543 11.3598 4 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza 5890751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-20 21:15:08 ± 0.07
Latitude 44.8543 ± 0.0018
Longitude 11.3598 ± 0.0051
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> REMO-INGV
Event type earthquake
Origin ID 5890751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 779
Semi-minor axis of confidence ellipse (meter) 391
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1652
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 1.07289
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 5890751
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:47:21

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 0
Type of magnitude ML
Reference to an origin 1338071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-20 21:26:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2012-05-20T21:15:44.07 1.0 undecidable manual S 331 117.0939 -0.1 0
IV.ROVR.HHZ. 2012-05-20T21:15:36.03 1.0 undecidable manual S 346 90.7425 -1.7 14.13
IV.BDI.HHZ. 2012-05-20T21:15:29.22 0.3 undecidable manual P 215 106.7154 2.11 0.9
NI.CGRP.HHZ. 2012-05-20T21:15:29.01 1.0 undecidable manual P 17 119.0919 0.38 0
IV.MAGA.HHZ. 2012-05-20T21:15:28.87 0.6 undecidable manual P 331 117.0939 0.72 0
IV.SALO.HHZ. 2012-05-20T21:15:28.20 0.6 undecidable manual P 323 107.115 1.07 2.5
IV.SEI.SHZ. 2012-05-20T21:15:27.31 1.0 undecidable manual P 180 88.7445 2.77 5.75
IV.BRIS.HHZ. 2012-05-20T21:15:25.07 0.3 undecidable manual P 155 76.9674 2.83 1.14
IV.ROVR.HHZ. 2012-05-20T21:15:24.16 1.0 undecidable manual P 346 90.7425 -0.08 1.54
IV.MTRZ.HHZ. 2012-05-20T21:15:23.32 1.0 undecidable manual P 175 60.2952 2.95 7.57
IV.ZCCA.HHZ. 2012-05-20T21:15:22.02 0.6 undecidable manual P 209 63.5919 1.07 0.44
IV.SBPO.HHZ. 2012-05-20T21:15:20.36 1.0 undecidable manual P 302 40.9257 3.43 0.76
IV.TEOL.HHZ. 2012-05-20T21:15:19.48 0.6 undecidable manual P 24 61.494 -0.35 0.45
IV.FIU.EHZ. 2012-05-20T21:15:18.98 0.6 undecidable manual S 156 25.9518 0.03 0.72
IV.RAVA.EHZ. 2012-05-20T21:15:18.21 0.6 undecidable manual S 240 21.9669 -0.05 0.33
IV.MODE.HNZ. 2012-05-20T21:15:17.03 1.0 undecidable manual P 233 40.9257 0.1 0.52
IV.T0812.EHZ. 2012-05-20T21:15:16.53 0.6 undecidable manual S 308 17.9709 -0.3 1.11
IV.T0813.EHZ. 2012-05-20T21:15:14.60 0.6 undecidable manual S 282 12.9759 -0.17 0.56
IV.T0811.EHZ. 2012-05-20T21:15:14.80 0.6 undecidable manual S 233 13.0758 0.04 0.33
IV.T0814.EHZ. 2012-05-20T21:15:14.59 0.6 undecidable manual P 258 31.5462 -0.34 0.26
IV.RAVA.EHZ. 2012-05-20T21:15:13.22 0.1 negative manual P 240 21.9669 -0.03 0.05
IV.FIU.EHZ. 2012-05-20T21:15:13.66 0.1 negative manual P 156 25.9518 -0.01 0.06
IV.T0812.EHZ. 2012-05-20T21:15:12.50 0.3 positive manual P 308 17.9709 0.1 0.16
IV.SERM.HNZ. 2012-05-20T21:15:12.54 0.3 undecidable manual P 344 17.9709 0.02 0.2
IV.T0811.EHZ. 2012-05-20T21:15:11.41 0.1 negative manual P 233 13.0758 0.02 0.05
IV.T0822.EHZ. 2012-05-20T21:15:11.49 0.3 undecidable manual S 205 2.5974 0.18 0.25
IV.T0813.EHZ. 2012-05-20T21:15:11.38 0.3 positive manual P 282 12.9759 -0.09 0.15
IV.T0822.EHZ. 2012-05-20T21:15:09.65 0.1 negative manual P 205 2.5974 0 0.06
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SERM.EHE. ML:2.7 0.00453 1.1 AML other m 2012-05-20T21:15:17.54
IV.SERM.EHN. ML:2.6 0.0036849999999999995 0.32 AML other m 2012-05-20T21:15:18.59
IV.FIU.EHN. ML:2.7 0.003105 0.72 AML other m 2012-05-20T21:15:31.28
IV.FIU.EHE. ML:2.8 0.003945000000000001 0.68 AML other m 2012-05-20T21:15:32.68
IV.ZCCA.HHE. ML:2.2 0.00031 0.34 AML other m 2012-05-20T21:15:34.46
IV.ZCCA.HHN. ML:2.0 0.00020400000000000003 0.44 AML other m 2012-05-20T21:15:36.19
IV.BRIS.HHN. ML:1.8 0.0000968 0.38 AML other m 2012-05-20T21:15:38.62
IV.BRIS.HHE. ML:2.0 0.00013550000000000001 0.4 AML other m 2012-05-20T21:15:39.86
IV.MAGA.HHN. ML:3.3 0.0015300000000000001 0.64 AML other m 2012-05-20T21:15:46.02
IV.SFI.EHN. ML:2.1 0.00010865 0.58 AML other m 2012-05-20T21:15:46.34
IV.MAGA.HHE. ML:3.4 0.001985 0.34 AML other m 2012-05-20T21:15:46.23
IV.SFI.EHE. ML:2.2 0.00011609999999999999 1.18 AML other m 2012-05-20T21:15:46.30
IV.CRMI.HHN. ML:2.1 0.0000853 0.5 AML other m 2012-05-20T21:15:48.90
IV.CRMI.HHE. ML:2.2 0.0001132 0.54 AML other m 2012-05-20T21:15:48.99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download