Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 23-05-2012 and time 23:48:17 (Italy) in region 5 km N Finale Emilia (MO)

A magnitude ML 2.2 earthquake occured in region: 5 km N Finale Emilia (MO), on

  • 23-05-2012 21:48:17 (UTC)
  • 23-05-2012 23:48:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8800, 11.2950 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 5 15699 15699
Bondeno FE 10 14655 30354
Sant'Agostino FE 12 6853 37207
Felonica MN 12 1359 38566
San Felice sul Panaro MO 13 10900 49466
Calto RO 14 743 50209
Ficarolo RO 14 2438 52647
Sermide MN 14 6189 58836
Mirabello FE 14 3266 62102
Castelmassa RO 16 4252 66354
Salara RO 16 1160 67514
Camposanto MO 16 3201 70715
Ceneselli RO 16 1719 72434
Castelnovo Bariano RO 16 2762 75196
Magnacavallo MN 16 1561 76757
Gaiba RO 17 1063 77820
Vigarano Mainarda FE 17 7694 85514
Cento FE 17 35686 121200
Poggio Rusco MN 18 6625 127825
Medolla MO 18 6308 134133
Mirandola MO 18 23875 158008
Carbonara di Po MN 18 1297 159305
Pieve di Cento BO 18 7019 166324
Galliera BO 19 5439 171763
San Giovanni del Dosso MN 19 1248 173011
Villa Poma MN 19 2023 175034
Poggio Renatico FE 20 9852 184886

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Ferrara (133155 inhabitants)
34 Km E of Carpi (70699 inhabitants)
39 Km NE of Modena (184973 inhabitants)
43 Km N of Bologna (386663 inhabitants)
45 Km W of Rovigo (51867 inhabitants)
56 Km E of Reggio nell'Emilia (171345 inhabitants)
67 Km SE of Verona (258765 inhabitants)
67 Km NW of Imola (69797 inhabitants)
74 Km SW of Padova (210401 inhabitants)
77 Km E of Parma (192836 inhabitants)
77 Km S of Vicenza (112953 inhabitants)
81 Km NW of Faenza (58541 inhabitants)
88 Km NW of Ravenna (159116 inhabitants)
94 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 2.3 2012-05-23
21:48:17		 44.8647 11.3473 10 2014-10-21
12:19:34		 Sala Sismica INGV-Roma 1371851
Bulletin
Rev1000 		ML 2.2 2012-05-23
21:48:17		 44.8798 11.2948 4 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV integrato con i dati della Rete Sismica di emergenza 5893381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-05-23 21:48:17 ± 0.04
Latitude 44.8798 ± 0.0009
Longitude 11.2948 ± 0.0025
Depth (km) 4 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> REMO-INGV
Event type earthquake
Origin ID 5893381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 394
Semi-minor axis of confidence ellipse (meter) 0
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
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) 48
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) 0.1433
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 1.01084
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:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 5893381
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:47:24

ML:2.3

Field Value
Value 2.3
Uncertainty 0.1
Num. used stations 0
Type of magnitude ML
Reference to an origin 1371851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-05-23 21:54:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2012-05-23T21:48:37.89 0.6 undecidable manual P 333 112.1988 0.93 0
IV.FIU.EHZ. 2012-05-23T21:48:29.44 0.6 undecidable manual S 150 30.8469 -0.62 0.61
IV.T0816.EHZ. 2012-05-23T21:48:28.22 0.6 undecidable manual S 126 29.748 -0.9 0.32
IV.T0818.EHZ. 2012-05-23T21:48:27.48 1.0 undecidable manual S 286 21.7671 -0.23 0.7
IV.T0817.EHZ. 2012-05-23T21:48:26.27 0.6 undecidable manual S 46 17.7711 0.1 1.43
IV.RAVA.EHZ. 2012-05-23T21:48:26.69 0.3 undecidable manual S 225 19.5693 -0.25 0.76
IV.T0803.HNZ. 2012-05-23T21:48:24.10 0.6 undecidable manual S 161 13.2756 -0.17 0.66
IV.T0812.EHZ. 2012-05-23T21:48:24.48 1.0 undecidable manual S 313 12.1767 0.09 1.32
IV.FIU.EHZ. 2012-05-23T21:48:23.79 0.3 undecidable manual P 150 30.8469 -0.23 0.17
IV.T0811.EHZ. 2012-05-23T21:48:23.41 0.3 undecidable manual S 207 11.9769 -0.43 0.76
IV.T0816.EHZ. 2012-05-23T21:48:23.55 0.6 undecidable manual P 126 29.748 -0.01 0.27
IV.T0813.EHZ. 2012-05-23T21:48:22.48 0.6 undecidable manual S 268 7.5813 0.03 0.36
IV.RAVA.EHZ. 2012-05-23T21:48:22.11 0.3 positive manual P 225 19.5693 -0.2 0.2
IV.T0802.HNZ. 2012-05-23T21:48:22.57 0.3 undecidable manual S 267 8.9799 -0.4 0.2
IV.T0817.EHZ. 2012-05-23T21:48:22.17 0.3 undecidable manual P 46 17.7711 0.25 0.16
IV.T0818.EHZ. 2012-05-23T21:48:22.56 0.3 undecidable manual P 286 21.7671 -0.13 0.13
IV.T0822.EHZ. 2012-05-23T21:48:22.27 0.6 undecidable manual S 143 6.5934 0.19 0.32
IV.T0812.EHZ. 2012-05-23T21:48:21.14 0.6 undecidable manual P 313 12.1767 0.26 0.26
IV.T0800.HHZ. 2012-05-23T21:48:21.58 0.3 undecidable manual S 227 5.0949 -0.03 0.18
IV.T0821.EHZ. 2012-05-23T21:48:21.80 0.6 undecidable manual P 82 19.5693 0.1 0.26
IV.SERM.HNZ. 2012-05-23T21:48:21.84 0.3 undecidable manual P 0 14.4744 0.47 0.15
IV.T0811.EHZ. 2012-05-23T21:48:20.48 0.3 positive manual P 207 11.9769 -0.19 0.22
IV.T0813.EHZ. 2012-05-23T21:48:20.03 0.1 positive manual P 268 7.5813 0.02 0.05
IV.T0803.HNZ. 2012-05-23T21:48:20.87 0.1 negative manual P 161 13.2756 -0.07 0.06
IV.T0802.HNZ. 2012-05-23T21:48:20.26 0.1 positive manual P 267 8.9799 0.04 0.05
IV.T0800.HHZ. 2012-05-23T21:48:19.53 0.1 positive manual P 227 5.0949 0 0.05
IV.T0822.EHZ. 2012-05-23T21:48:19.92 0.1 positive manual P 143 6.5934 0.11 0.05
IV.T0805.HNZ. 2012-05-23T21:48:19.15 0.1 negative manual P 27 4.7952 -0.25 0.08
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RAVA.EHE. ML:2.2 0.001195 0.12 AML other m 2012-05-23T21:48:26.80
IV.RAVA.EHN. ML:2.3 0.00157 0.26 AML other m 2012-05-23T21:48:26.89
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