Earthquake with magnitude of Md 3.0 on date 15-09-1986 and time 23:11:10 (Italy) in region 3 km NE Bologna (BO)

A magnitude Md 3.0 earthquake occured in region: 3 km NE Bologna (BO), on

  • 15-09-1986 21:11:10 (UTC)
  • 15-09-1986 23:11:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.52, 11.36 at 5 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
Bologna BO 3 386663 386663
San Lazzaro di Savena BO 7 32065 418728
Castel Maggiore BO 7 18231 436959
Casalecchio di Reno BO 7 36327 473286
Granarolo dell'Emilia BO 9 11910 485196
Calderara di Reno BO 9 13196 498392
Castenaso BO 9 14925 513317
Zola Predosa BO 11 18770 532087
Ozzano dell'Emilia BO 13 13596 545683
Anzola dell'Emilia BO 13 12267 557950
Monte San Pietro BO 14 10982 568932
Argelato BO 14 9844 578776
Sala Bolognese BO 14 8353 587129
Bentivoglio BO 14 5469 592598
Pianoro BO 15 17460 610058
Budrio BO 15 18412 628470
San Giorgio di Piano BO 15 8512 636982
Sasso Marconi BO 16 14735 651717
Minerbio BO 16 8793 660510
Castello d'Argile BO 19 6550 667060
San Giovanni in Persiceto BO 19 27982 695042

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km NE of Bologna (386663 inhabitants)
34 Km NW of Imola (69797 inhabitants)
37 Km E of Modena (184973 inhabitants)
41 Km SW of Ferrara (133155 inhabitants)
48 Km SE of Carpi (70699 inhabitants)
49 Km NW of Faenza (58541 inhabitants)
61 Km E of Reggio nell'Emilia (171345 inhabitants)
64 Km NW of Forlì (117913 inhabitants)
68 Km W of Ravenna (159116 inhabitants)
71 Km SW of Rovigo (51867 inhabitants)
74 Km NE of Pistoia (90315 inhabitants)
74 Km N of Prato (191150 inhabitants)
82 Km NW of Cesena (96758 inhabitants)
83 Km N of Firenze (382808 inhabitants)
85 Km N of Scandicci (50609 inhabitants)
87 Km E of Parma (192836 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
Rev 1000 Md 3.0 1986-09-15
21:11:10
44.52 11.36 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 34149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-15 21:11:10 ± 0.213
Latitude 44.52 ± 0.02
Longitude 11.36 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34149

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) 2517.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00631
Epicentral distance of station farthest from the epicenter (degree) 0.05658
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitude information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 34149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:34:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BGF.Z. 1986-09-15T21:12:43.40 10.0 undecidable manual PN 291 0.0566 0.11 1.1
--.LOR.Z. 1986-09-15T21:12:37.40 10.0 undecidable manual PN 299 0.053 -0.4 1.1
--.LBF.Z. 1986-09-15T21:12:35.50 10.0 undecidable manual PN 297 0.0513 0.3 1.1
--.SMF.Z. 1986-09-15T21:12:33.40 10.0 undecidable manual PN 294 0.051 -1.31 0.5
--.STV.Z. 1986-09-15T21:12:32.00 10.0 undecidable manual SN 265 0.026 1.45 0.2
--.ORX.Z. 1986-09-15T21:12:22.50 10.0 undecidable manual SN 295 0.0236 -1.92 0.1
--.IMP.Z. 1986-09-15T21:12:22.80 10.0 undecidable manual SN 257 0.0229 0.23 0.8
--.CDF.Z. 1986-09-15T21:12:22.40 10.0 undecidable manual PN 325 0.0431 -0.39 1.2
--.ROB.Z. 1986-09-15T21:12:21.50 10.0 undecidable manual SN 265 0.0224 0.27 0.8
--.FIN.Z. 1986-09-15T21:12:15.50 10.0 undecidable manual SN 262 0.0204 -0.36 0.7
--.TRI.Z. 1986-09-15T21:12:09.50 10.0 undecidable manual SN 53 0.0186 -1.75 0.1
--.LRG.Z. 1986-09-15T21:12:08.60 10.0 undecidable manual PN 254 0.0337 0.3 1.5
--.LMR.Z. 1986-09-15T21:12:06.40 10.0 undecidable manual PN 252 0.0331 -1.05 0.9
--.FRF.Z. 1986-09-15T21:12:05.00 10.0 undecidable manual PN 255 0.0316 -0.15 1.6
--.LPL.Z. 1986-09-15T21:12:03.40 10.0 undecidable manual PN 288 0.0307 -0.38 1.5
--.CTI.Z. 1986-09-15T21:11:57.50 10.0 undecidable manual SN 7 0.0138 -1.13 0.4
--.STV.Z. 1986-09-15T21:11:57.00 10.0 undecidable manual PN 265 0.026 0.46 1.6
--.ORX.Z. 1986-09-15T21:11:54.50 10.0 undecidable manual PN 295 0.0236 1.51 0.5
--.VEA.Z. 1986-09-15T21:11:53.50 10.0 undecidable manual SN 286 0.0116 0.95 0.5
--.CVF.Z. 1986-09-15T21:11:52.00 10.0 undecidable manual PN 223 0.0238 -1.31 0.7
--.SAL.Z. 1986-09-15T21:11:51.00 10.0 undecidable manual SN 331 0.0111 -0.34 0.7
--.ROB.Z. 1986-09-15T21:11:51.20 10.0 undecidable manual PN 265 0.0224 0.05 2
--.IMP.Z. 1986-09-15T21:11:51.20 10.0 undecidable manual PN 257 0.0229 -0.72 1.5
--.RBL.Z. 1986-09-15T21:11:50.00 10.0 undecidable manual PN 37 0.0222 -0.81 1.4
--.CKI.Z. 1986-09-15T21:11:48.00 10.0 undecidable manual PN 268 0.0198 0.95 1.2
--.FIN.Z. 1986-09-15T21:11:47.20 10.0 undecidable manual PN 262 0.0204 -0.85 1.3
--.BVT.Z. 1986-09-15T21:11:47.50 10.0 undecidable manual SN 267 0.0099 -0.52 0.7
--.CRE.Z. 1986-09-15T21:11:45.00 10.0 undecidable manual SG 153 0.0089 0.2 0.8
--.TRI.Z. 1986-09-15T21:11:44.00 10.0 undecidable manual PN 53 0.0186 -1.39 0.7
--.ASS.Z. 1986-09-15T21:11:41.50 10.0 undecidable manual PN 146 0.0155 0.88 1.3
--.ARV.Z. 1986-09-15T21:11:39.50 10.0 undecidable manual PN 130 0.0138 1.61 0.5
--.MDI.Z. 1986-09-15T21:11:39.50 10.0 undecidable manual PN 317 0.0154 -0.91 1.2
--.CTI.Z. 1986-09-15T21:11:39.50 10.0 undecidable manual PN 7 0.0138 1.39 0.7
--.CO9.Z. 1986-09-15T21:11:37.50 10.0 undecidable manual PN 280 0.0124 1.66 0.4
--.VEA.Z. 1986-09-15T21:11:35.80 10.0 undecidable manual PN 286 0.0116 1.2 0.9
--.BDI.Z. 1986-09-15T21:11:34.50 10.0 undecidable manual SG 229 0.0063 -1.13 0.4
--.SAL.Z. 1986-09-15T21:11:34.80 10.0 negative manual PN 331 0.0111 0.91 2.5
--.BVT.Z. 1986-09-15T21:11:32.00 10.0 undecidable manual PN 267 0.0099 0.02 2
--.CRE.Z. 1986-09-15T21:11:30.00 10.0 undecidable manual PG 153 0.0089 -0.12 1.9
--.BDI.Z. 1986-09-15T21:11:24.00 10.0 undecidable manual PG 229 0.0063 -0.83 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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