Earthquake with magnitude of Md 3.3 on date 01-11-1986 and time 06:45:12 (UTC) in region 3 km SW Imola (BO)

A magnitude Md 3.3 earthquake occured in region: 3 km SW Imola (BO), on

  • 01-11-1986 06:45:12 (UTC)
  • 01-11-1986 07:45:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.332, 11.684 at 8 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Imola BO 4 69797 69797
Dozza BO 5 6652 76449
Casalfiumanese BO 7 3438 79887
Riolo Terme RA 7 5720 85607
Castel Bolognese RA 9 9554 95161
Borgo Tossignano BO 10 3288 98449
Castel San Pietro Terme BO 11 20811 119260
Castel Guelfo di Bologna BO 11 4455 123715
Mordano BO 13 4760 128475
Casola Valsenio RA 13 2617 131092
Fontanelice BO 13 1943 133035
Bagnara di Romagna RA 13 2429 135464
Solarolo RA 13 4488 139952
Brisighella RA 14 7639 147591
Medicina BO 17 16739 164330
Faenza RA 17 58541 222871
Massa Lombarda RA 17 10653 233524
Sant'Agata sul Santerno RA 19 2862 236386
Castel del Rio BO 19 1246 237632

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SW of Imola (69797 inhabitants)
17 Km W of Faenza (58541 inhabitants)
31 Km W of Forlì (117913 inhabitants)
33 Km SE of Bologna (386663 inhabitants)
42 Km W of Ravenna (159116 inhabitants)
50 Km W of Cesena (96758 inhabitants)
56 Km S of Ferrara (133155 inhabitants)
69 Km NE of Prato (191150 inhabitants)
70 Km SE of Modena (184973 inhabitants)
71 Km NE of Firenze (382808 inhabitants)
75 Km NE of Scandicci (50609 inhabitants)
75 Km NE of Pistoia (90315 inhabitants)
77 Km W of Rimini (147750 inhabitants)
81 Km SE of Carpi (70699 inhabitants)
83 Km S of Rovigo (51867 inhabitants)
93 Km E of Reggio nell'Emilia (171345 inhabitants)
98 Km N of Arezzo (99543 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
Md 3.3 1986-11-01
06:45:12
44.332 11.684 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 36579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-11-01 06:45:12 ± 0.356
Latitude 44.3320 ± 0.0111
Longitude 11.6840 ± 0.0115
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 36579

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1533.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 64
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00567
Epicentral distance of station farthest from the epicenter (degree) 0.06241
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 44
Magnitude information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 36579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:36:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.TCF.Z. 1986-11-01T06:48:08.60 10.0 undecidable manual SN 289 0.0624 0.08 0.4
--.BGF.Z. 1986-11-01T06:48:00.00 10.0 undecidable manual SN 292 0.0592 -0.08 0.4
--.LOR.Z. 1986-11-01T06:47:50.80 10.0 undecidable manual SN 300 0.0557 0.03 0.4
--.LBF.Z. 1986-11-01T06:47:46.80 10.0 undecidable manual SN 298 0.0539 0.57 0.3
--.SMF.Z. 1986-11-01T06:47:45.90 10.0 undecidable manual SN 295 0.0536 0.6 0.3
--.HAU.Z. 1986-11-01T06:47:26.20 10.0 undecidable manual SN 316 0.0468 -1.2 0.1
--.CDF.Z. 1986-11-01T06:47:23.60 10.0 undecidable manual SN 324 0.0457 -0.91 0.1
--.BSF.Z. 1986-11-01T06:47:19.20 10.0 undecidable manual SN 317 0.0438 -0.22 0.5
--.LMR.Z. 1986-11-01T06:46:55.60 10.0 undecidable manual SN 256 0.0347 0.18 0.5
--.TCF.Z. 1986-11-01T06:46:53.80 10.0 undecidable manual PN 289 0.0624 -0.31 0.9
--.FRF.Z. 1986-11-01T06:46:52.00 10.0 undecidable manual SN 259 0.0334 0.29 0.5
--.BGF.Z. 1986-11-01T06:46:48.60 10.0 undecidable manual PN 292 0.0592 -0.64 0.6
--.AVF.Z. 1986-11-01T06:46:45.40 10.0 undecidable manual PN 295 0.0569 -0.31 0.9
--.LOR.Z. 1986-11-01T06:46:43.80 10.0 undecidable manual PN 300 0.0557 -0.06 1.1
--.LBF.Z. 1986-11-01T06:46:41.20 10.0 undecidable manual PN 298 0.0539 -0.04 1.1
--.SOO.Z. 1986-11-01T06:46:40.50 10.0 undecidable manual SN 274 0.0295 -0.99 0.1
--.SMF.Z. 1986-11-01T06:46:40.30 10.0 undecidable manual PN 295 0.0536 -0.4 0.9
--.STV.Z. 1986-11-01T06:46:38.20 10.0 undecidable manual SN 269 0.028 0.5 0.4
--.SBF.Z. 1986-11-01T06:46:37.00 10.0 undecidable manual SN 262 0.0278 0.03 0.6
--.ENR.Z. 1986-11-01T06:46:36.80 10.0 undecidable manual SN 269 0.0274 0.61 0.4
--.ORX.Z. 1986-11-01T06:46:31.80 10.0 undecidable manual SN 297 0.0262 -1.29 0.1
--.HAU.Z. 1986-11-01T06:46:30.40 10.0 undecidable manual PN 316 0.0468 0.03 1.2
--.VBY.Z. 1986-11-01T06:46:30.20 10.0 undecidable manual SN 63 0.025 0.34 0.5
--.IMP.Z. 1986-11-01T06:46:29.40 10.0 undecidable manual SN 262 0.0247 0.38 0.5
--.CDF.Z. 1986-11-01T06:46:28.80 10.0 undecidable manual PN 324 0.0457 0.1 1.2
--.ROB.Z. 1986-11-01T06:46:26.80 10.0 undecidable manual SN 270 0.0245 -1.61 0
--.BSF.Z. 1986-11-01T06:46:25.90 10.0 undecidable manual PN 317 0.0438 0.14 1.2
--.FIN.Z. 1986-11-01T06:46:22.60 10.0 undecidable manual SN 268 0.0223 -0.22 0.6
--.LMR.Z. 1986-11-01T06:46:11.80 10.0 undecidable manual PN 256 0.0347 -0.11 1.4
--.FRF.Z. 1986-11-01T06:46:10.20 10.0 undecidable manual PN 259 0.0334 0.43 1.1
--.BN9.Z. 1986-11-01T06:46:09.60 10.0 undecidable manual PN 282 0.0326 0.35 1.2
--.RRL.Z. 1986-11-01T06:46:08.00 10.0 undecidable manual PN 280 0.0317 0.58 0.9
--.SOO.Z. 1986-11-01T06:46:03.10 10.0 undecidable manual PN 274 0.0295 -0.77 0.6
--.DA9.Z. 1986-11-01T06:46:02.11 10.0 undecidable manual PN 274 0.0285 -0.35 1.3
--.SBF.Z. 1986-11-01T06:46:01.60 10.0 undecidable manual PN 262 0.0278 0.35 1.3
--.STV.Z. 1986-11-01T06:46:01.80 10.0 undecidable manual PN 269 0.028 0.13 1.5
--.ENR.Z. 1986-11-01T06:46:00.50 10.0 undecidable manual PN 269 0.0274 -0.3 1.3
--.ORO.Z. 1986-11-01T06:46:00.00 10.0 undecidable manual PN 297 0.0262 1.02 0.4
--.VBY.Z. 1986-11-01T06:45:57.60 10.0 undecidable manual PN 63 0.025 0.45 1.1
--.ORX.Z. 1986-11-01T06:45:57.70 10.0 undecidable manual PN 297 0.0262 -1.31 0.1
--.IMP.Z. 1986-11-01T06:45:56.30 10.0 undecidable manual PN 262 0.0247 -0.36 1.2
--.BVT.Z. 1986-11-01T06:45:56.50 10.0 undecidable manual SN 276 0.0121 0.99 0.2
--.ROB.Z. 1986-11-01T06:45:56.10 10.0 undecidable manual PN 270 0.0245 -0.21 1.4
--.LJU.Z. 1986-11-01T06:45:55.70 10.0 positive manual PN 48 0.0236 0.65 1.7
--.CVF.Z. 1986-11-01T06:45:55.50 10.0 undecidable manual PN 229 0.0243 -0.44 1.1
--.VAI.Z. 1986-11-01T06:45:54.22 10.0 undecidable manual PN 307 0.0231 0.12 3
--.FIN.Z. 1986-11-01T06:45:52.80 10.0 undecidable manual PN 268 0.0223 -0.28 1.3
--.RBL.Z. 1986-11-01T06:45:52.84 10.0 undecidable manual PN 31 0.0223 -0.21 2.8
--.CKI.Z. 1986-11-01T06:45:52.52 10.0 undecidable manual PN 272 0.0219 0.2 2.9
--.CEY.Z. 1986-11-01T06:45:51.30 10.0 undecidable manual PN 52 0.0215 -0.45 2.2
--.VOY.Z. 1986-11-01T06:45:50.20 10.0 positive manual PN 41 0.0207 -0.32 2.6
--.MAO.Z. 1986-11-01T06:45:46.43 10.0 undecidable manual PN 191 0.0176 0.72 0.7
--.TRI.Z. 1986-11-01T06:45:46.11 10.0 undecidable manual PN 45 0.0181 -0.42 2.3
--.GEN.Z. 1986-11-01T06:45:45.00 10.0 undecidable manual PN 273 0.0176 -0.85 0.5
--.CTI.Z. 1986-11-01T06:45:42.80 10.0 undecidable manual PN 358 0.0154 -0.36 2.5
--.CO9.Z. 1986-11-01T06:45:42.70 10.0 undecidable manual PN 285 0.0148 1.14 0.2
--.VEA.Z. 1986-11-01T06:45:41.60 10.0 undecidable manual PN 291 0.0141 1.13 0.2
--.SAL.Z. 1986-11-01T06:45:40.74 10.0 undecidable manual PN 327 0.0136 1.04 0.6
--.ASS.Z. 1986-11-01T06:45:39.45 10.0 undecidable manual PN 150 0.013 0.65 0.8
--.BVT.Z. 1986-11-01T06:45:38.70 10.0 undecidable manual PN 276 0.0121 1.38 0.1
--.ARV.Z. 1986-11-01T06:45:36.50 10.0 undecidable manual PN 131 0.011 0.7 0.8
--.BDI.Z. 1986-11-01T06:45:29.00 10.0 positive manual PG 250 0.0074 -0.12 3
--.CRE.Z. 1986-11-01T06:45:26.97 10.0 positive manual PG 164 0.0066 -0.54 2
--.FIR.Z. 1986-11-01T06:45:25.00 10.0 positive manual PG 208 0.0057 -0.66 0.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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