Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 15-12-2017 and time 16:57:30 (Italy) in region 7 km S Savignano sul Panaro (MO)

A magnitude ML 2.3 earthquake occured in region: 7 km S Savignano sul Panaro (MO), on

  • 15-12-2017 15:57:30 (UTC)
  • 15-12-2017 16:57:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4220, 11.0480 at 30 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
Savignano sul Panaro MO 7 9177 9177
Guiglia MO 7 3931 13108
Vignola MO 7 25353 38461
Marano sul Panaro MO 8 5060 43521
Zocca MO 9 4719 48240
Valsamoggia BO 10 30561 78801
Castelvetro di Modena MO 12 11185 89986
Spilamberto MO 13 12621 102607
Monte San Pietro BO 13 10982 113589
Marzabotto BO 15 6779 120368
Zola Predosa BO 16 18770 139138
San Cesario sul Panaro MO 16 6407 145545
Castel d'Aiano BO 16 1906 147451
Sasso Marconi BO 16 14735 162186
Vergato BO 16 7639 169825
Castelnuovo Rangone MO 17 14896 184721
Anzola dell'Emilia BO 18 12267 196988
Maranello MO 18 17359 214347
Montese MO 19 3353 217700
Pavullo nel Frignano MO 19 17383 235083
Castelfranco Emilia MO 20 32677 267760
Casalecchio di Reno BO 20 36327 304087

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Bologna (386663 inhabitants)
27 Km SE of Modena (184973 inhabitants)
42 Km SE of Carpi (70699 inhabitants)
45 Km SE of Reggio nell'Emilia (171345 inhabitants)
54 Km W of Imola (69797 inhabitants)
55 Km N of Pistoia (90315 inhabitants)
60 Km N of Prato (191150 inhabitants)
65 Km SW of Ferrara (133155 inhabitants)
68 Km W of Faenza (58541 inhabitants)
71 Km SE of Parma (192836 inhabitants)
74 Km N of Firenze (382808 inhabitants)
74 Km N of Scandicci (50609 inhabitants)
78 Km NE of Lucca (89046 inhabitants)
82 Km W of Forlì (117913 inhabitants)
84 Km NE of Massa (69479 inhabitants)
85 Km E of Carrara (63133 inhabitants)
89 Km NE of Viareggio (62467 inhabitants)
92 Km W of Ravenna (159116 inhabitants)
93 Km SW of Rovigo (51867 inhabitants)
94 Km NE of Pisa (89158 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
Bulletin
Rev1000 		ML 2.3 2017-12-15
15:57:30		 44.4217 11.0483 30 2018-09-04
09:10:44		 Bollettino Sismico Italiano INGV 57129921
Reviewed
Rev100 		ML 2.4 2017-12-15
15:57:30		 44.4442 11.056 29 2017-12-15
16:14:21		 Sala Sismica INGV-Roma 52610191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-15 15:57:30 ± 0.28
Latitude 44.4217 ± 0.0117
Longitude 11.0483 ± 0.0139
Depth (km) 30 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57129921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1353
Semi-minor axis of confidence ellipse (meter) 387
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 1350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 196
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.79410
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 57129921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-06-14 12:58:07

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 52610191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-15 16:14:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHE. 2017-12-15T15:57:57.77 0.3 undecidable manual S 208 88.1451 104 0.58 61
IV.BDI.HHE. 2017-12-15T15:57:48.34 0.3 undecidable manual S 222 53.6019 114 -0.11 73
Z3.A306A.HHZ. 2017-12-15T15:57:47.20 0.6 undecidable manual S 290 37.9287 123 2.44 12
IV.SEI.HHN. 2017-12-15T15:57:47.78 0.6 undecidable manual S 149 47.619 117 0.79 41
GU.POPM.HHZ. 2017-12-15T15:57:47.23 0.3 undecidable manual S 209 47.7189 117 0.21 72
IV.PII.HHE. 2017-12-15T15:57:46.52 0.3 undecidable manual P 208 88.1451 104 0.57 61
IV.MOCL.EHE. 2017-12-15T15:57:46.95 0.3 undecidable manual S 167 47.4192 117 0.01 75
IV.MTCR.EHZ. 2017-12-15T15:57:45.94 0.3 undecidable manual S 185 43.8228 119 -0.15 73
GU.GSCL.HHZ. 2017-12-15T15:57:44.28 0.3 undecidable manual S 258 37.3293 124 -0.33 72
GU.MAIM.HHE. 2017-12-15T15:57:43.73 0.3 undecidable manual P 218 71.6727 107 0.23 68
IV.LMD.HHN. 2017-12-15T15:57:43.17 0.3 undecidable manual P 126 64.7907 109 0.67 62
IV.FNVD.HHZ. 2017-12-15T15:57:42.38 0.3 undecidable manual S 168 28.749 132 -0.42 70
GU.SARM.EHE. 2017-12-15T15:57:42.10 0.3 undecidable manual P 243 57.7977 112 0.61 63
IV.BDI.HHE. 2017-12-15T15:57:40.72 0.1 undecidable manual P 222 53.6019 114 -0.19 96
IV.MPPT.EHE. 2017-12-15T15:57:40.47 0.3 undecidable manual P 176 51.6039 115 -0.15 72
GU.POPM.HHZ. 2017-12-15T15:57:40.07 0.3 negative manual P 209 47.7189 117 -0.01 75
IV.ZCCA.HHZ. 2017-12-15T15:57:40.08 0.3 undecidable manual S 216 9.6792 160 0.2 78
IV.MTCR.EHZ. 2017-12-15T15:57:39.29 0.1 undecidable manual P 185 43.8228 119 -0.26 96
IV.MOCL.EHE. 2017-12-15T15:57:39.71 0.3 undecidable manual P 167 47.4192 117 -0.32 70
Z3.A306A.HHZ. 2017-12-15T15:57:39.38 0.3 undecidable manual P 290 37.9287 123 0.61 65
IV.SEI.HHN. 2017-12-15T15:57:39.90 0.1 undecidable manual P 149 47.619 117 -0.17 97
GU.GSCL.HHZ. 2017-12-15T15:57:38.17 0.1 undecidable manual P 258 37.3293 124 -0.52 92
IV.FNVD.HHZ. 2017-12-15T15:57:37.05 0.1 undecidable manual P 168 28.749 132 -0.59 89
IV.ZCCA.HHZ. 2017-12-15T15:57:35.64 0.1 undecidable manual P 216 9.6792 160 -0.32 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HNE. ML:2.3 0.0008997434 0.2304 AML other m 2017-12-15T15:57:40.83
IV.ZCCA.HHN. ML:2.5 0.0016058270000000002 0.4352 AML other m 2017-12-15T15:57:40.84
IV.ZCCA.HNN. ML:2.5 0.0015357525 0.4352 AML other m 2017-12-15T15:57:41.06
IV.ZCCA.HHE. ML:2.2 0.0007932154 0.3072 AML other m 2017-12-15T15:57:41.36
IV.FNVD.HHE. ML:2.2 0.00061472385 0.128 AML other m 2017-12-15T15:57:42.55
IV.FNVD.HHN. ML:2.4 0.0009314296500000001 0.1152 AML other m 2017-12-15T15:57:42.64
GU.GSCL.HHN. ML:1.5 0.00008721681500000001 0.4096 AML other m 2017-12-15T15:57:46.39
IV.MTCR.EHN. ML:1.7 0.00012660088999999998 0.1664 AML other m 2017-12-15T15:57:47.12
GU.POPM.HHN. ML:2.7 0.0011451230999999999 0.1664 AML other m 2017-12-15T15:57:47.57
IV.MTCR.EHE. ML:1.7 0.0001316852 0.2432 AML other m 2017-12-15T15:57:48.03
GU.POPM.HHE. ML:2.9 0.0016476625 0.1536 AML other m 2017-12-15T15:57:48.05
GU.GSCL.HHE. ML:1.5 0.00009453056 0.32 AML other m 2017-12-15T15:57:50.48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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