Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 21-05-2012 and time 08:54:31 (Italy) in region 2 km NE Finale Emilia (MO)

A magnitude ML 2.0 earthquake occured in region: 2 km NE Finale Emilia (MO), on

  • 21-05-2012 06:54:31 (UTC)
  • 21-05-2012 08:54:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8440, 11.3140 at 7 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 2 15699 15699
Sant'Agostino FE 8 6853 22552
Bondeno FE 10 14655 37207
Mirabello FE 12 3266 40473
Cento FE 13 35686 76159
San Felice sul Panaro MO 14 10900 87059
Pieve di Cento BO 14 7019 94078
Galliera BO 15 5439 99517
Vigarano Mainarda FE 15 7694 107211
Camposanto MO 15 3201 110412
Ficarolo RO 15 2438 112850
Felonica MN 16 1359 114209
Poggio Renatico FE 16 9852 124061
Calto RO 17 743 124804
San Pietro in Casale BO 17 12202 137006
Gaiba RO 18 1063 138069
Castello d'Argile BO 18 6550 144619
Salara RO 18 1160 145779
Sermide MN 18 6189 151968
Crevalcore BO 19 13465 165433
Medolla MO 19 6308 171741
Ceneselli RO 19 1719 173460
Castelmassa RO 19 4252 177712

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Ferrara (133155 inhabitants)
34 Km E of Carpi (70699 inhabitants)
38 Km NE of Modena (184973 inhabitants)
39 Km N of Bologna (386663 inhabitants)
45 Km SW of Rovigo (51867 inhabitants)
56 Km E of Reggio nell'Emilia (171345 inhabitants)
63 Km NW of Imola (69797 inhabitants)
71 Km SE of Verona (258765 inhabitants)
77 Km SW of Padova (210401 inhabitants)
77 Km NW of Faenza (58541 inhabitants)
78 Km E of Parma (192836 inhabitants)
80 Km S of Vicenza (112953 inhabitants)
85 Km NW of Ravenna (159116 inhabitants)
90 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 2012-05-21
06:54:33		 44.8682 11.2353 10 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1344181
Bulletin
Rev1000 		ML 2.0 2012-05-21
06:54:31		 44.8438 11.314 7 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza 5891221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-21 06:54:31 ± 0.1
Latitude 44.8438 ± 0.0045
Longitude 11.3140 ± 0.0038
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> REMO-INGV
Event type earthquake
Origin ID 5891221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 679
Semi-minor axis of confidence ellipse (meter) 527
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
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) 90
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1436
Epicentral distance of station closest to the epicenter (degree) 0.02518
Epicentral distance of station farthest from the epicenter (degree) 1.09268
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 3
Type of magnitude ML
Reference to an origin 5891221
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 0.7
Num. used stations 0
Type of magnitude ML
Reference to an origin 1344181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-21 07:00:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2012-05-21T06:55:06.72 0.6 undecidable manual S 333 116.4945 0.44 10.67
IV.ROVR.HHZ. 2012-05-21T06:54:59.50 0.6 undecidable manual S 348 91.0422 -0.58 4.6
IV.TEOL.HHZ. 2012-05-21T06:54:52.39 1.0 undecidable manual S 26 63.9915 -0.55 8.23
NI.CGRP.HHZ. 2012-05-21T06:54:52.56 0.6 undecidable manual P 18 121.2897 0.93 7.5
IV.MAGA.HHZ. 2012-05-21T06:54:51.91 0.6 undecidable manual P 333 116.4945 1.16 5.89
IV.BDI.HHZ. 2012-05-21T06:54:49.89 1.0 undecidable manual P 214 103.7184 0.5 0
IV.SEI.SHZ. 2012-05-21T06:54:48.68 1.0 undecidable manual P 178 87.6456 1.6 2.32
IV.ROVR.HHZ. 2012-05-21T06:54:47.79 0.6 undecidable manual P 348 91.0422 0.81 3.01
IV.BRIS.HHZ. 2012-05-21T06:54:47.51 0.6 undecidable manual P 152 77.4669 2.5 0.68
IV.ZCCA.HHZ. 2012-05-21T06:54:44.27 0.6 undecidable manual P 206 60.8946 0.91 0.34
IV.TEOL.HHZ. 2012-05-21T06:54:43.02 0.6 undecidable manual P 26 63.9915 -0.08 2.29
IV.FIU.EHZ. 2012-05-21T06:54:40.23 1.0 undecidable manual S 148 26.5512 -1.91 2.52
IV.RAVA.EHZ. 2012-05-21T06:54:40.25 0.3 undecidable manual S 238 18.2706 0.1 0.22
IV.T0812.EHZ. 2012-05-21T06:54:39.00 1.0 undecidable manual S 320 16.1727 -0.39 0.98
IV.T0813.EHZ. 2012-05-21T06:54:37.15 0.6 undecidable manual S 293 9.7791 0.17 0.32
IV.T0814.EHZ. 2012-05-21T06:54:37.31 0.6 undecidable manual P 258 27.8499 -0.01 0.26
IV.T0811.EHZ. 2012-05-21T06:54:36.93 0.1 undecidable manual S 226 9.5793 0.09 0.1
IV.T0812.EHZ. 2012-05-21T06:54:35.24 0.3 undecidable manual P 320 16.1727 0.06 0.22
IV.FIU.EHZ. 2012-05-21T06:54:35.96 1.0 undecidable manual P 148 26.5512 -0.9 0.52
IV.RAVA.EHZ. 2012-05-21T06:54:35.65 0.1 positive manual P 238 18.2706 -0.03 0.05
IV.SERM.HNZ. 2012-05-21T06:54:35.77 1.0 undecidable manual P 356 18.4704 0.08 2.92
IV.T0822.EHZ. 2012-05-21T06:54:35.36 0.3 undecidable manual S 116 2.7972 0.23 0.22
IV.T0813.EHZ. 2012-05-21T06:54:34.08 0.1 negative manual P 293 9.7791 0.02 0.05
IV.T0822.EHZ. 2012-05-21T06:54:33.05 0.3 undecidable manual P 116 2.7972 -0.06 0.13
IV.T0811.EHZ. 2012-05-21T06:54:33.88 0.1 positive manual P 226 9.5793 -0.04 0.05
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HHE. ML:1.8 0.0001455 0.34 AML other m 2012-05-21T06:54:56.23
IV.ROVR.HHN. ML:3.1 0.00134 0.42 AML other m 2012-05-21T06:55:02.65
IV.ROVR.HHE. ML:2.7 0.0005695 0.28 AML other m 2012-05-21T06:55:02.80
IV.ZCCA.HHN. ML:1.9 0.000163 1.5 AML other m 2012-05-21T06:55:13.16
IV.BRIS.HHN. ML:1.8 0.00008585000000000001 0.42 AML other m 2012-05-21T06:55:21.99
IV.BRIS.HHE. ML:1.8 0.00008130000000000001 0.44 AML other m 2012-05-21T06:55:21.98
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