Earthquake with magnitude of Md 4.0 on date 13-10-1986 and time 06:10:00 (Italy) in region 6 km S Bolognola (MC)

A magnitude Md 4.0 earthquake occured in region: 6 km S Bolognola (MC), on

  • 13-10-1986 05:10:00 (UTC)
  • 13-10-1986 06:10:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.94, 13.24 at 4 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
Bolognola MC 6 142 142
Ussita MC 8 444 586
Castelsantangelo sul Nera MC 8 281 867
Montemonaco AP 9 604 1471
Montefortino FM 9 1178 2649
Amandola FM 11 3629 6278
Acquacanina MC 12 121 6399
Visso MC 12 1107 7506
Sarnano MC 12 3264 10770
Fiastra MC 13 559 11329
Montegallo AP 13 523 11852
Comunanza AP 15 3166 15018
Fiordimonte MC 16 202 15220
Gualdo MC 17 815 16035
Preci PG 17 724 16759
Pievebovigliana MC 19 866 17625
Palmiano AP 19 196 17821
Smerillo FM 19 365 18186
Arquata del Tronto AP 19 1178 19364
Montefalcone Appennino FM 19 424 19788
Cessapalombo MC 19 512 20300
Pieve Torina MC 19 1458 21758
Monte San Martino MC 20 765 22523
Norcia PG 20 4957 27480

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
88 Km NW of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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 4.0 1986-10-13
05:10:00
42.94 13.24 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 35849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-13 05:10:00 ± 0.539
Latitude 42.94 ± 0.01
Longitude 13.24 ± 0.02
Depth (km) 4 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 35849

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) 2175.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 66
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00397
Epicentral distance of station farthest from the epicenter (degree) 0.06387
Number of stations at which the event was observed 62
Number of stations from which data was used for origin computation 62
Magnitude information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 35849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:36:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.VAY.Z. 1986-10-13T05:11:44.30 10.0 undecidable manual PN 99 0.0639 -0.73 0.6
--.MDI.Z. 1986-10-13T05:11:43.00 10.0 undecidable manual SN 319 0.0341 0.11 0.7
--.CDF.Z. 1986-10-13T05:11:41.10 10.0 undecidable manual PN 324 0.0618 -0.8 0.6
--.CTI.Z. 1986-10-13T05:11:31.50 10.0 undecidable manual SN 340 0.0297 0.18 0.8
--.OHR.Z. 1986-10-13T05:11:28.30 10.0 undecidable manual PN 105 0.0531 -0.28 0.9
--.SO9.Z. 1986-10-13T05:11:22.20 10.0 undecidable manual PN 154 0.0478 1.68 0.2
--.LPG.Z. 1986-10-13T05:11:21.00 10.0 undecidable manual PN 300 0.0477 0.66 0.8
--.MUO.Z. 1986-10-13T05:11:20.50 10.0 undecidable manual PN 322 0.0465 1.9 0.1
--.MS9.Z. 1986-10-13T05:11:19.50 10.0 negative manual PN 166 0.0461 1.57 0.5
--.DIX.Z. 1986-10-13T05:11:19.90 10.0 undecidable manual PN 308 0.0468 0.89 0.7
--.RRL.Z. 1986-10-13T05:11:17.50 10.0 undecidable manual PN 294 0.0454 0.64 0.8
--.LLS.Z. 1986-10-13T05:11:17.00 10.0 undecidable manual PN 323 0.0443 1.87 0.1
--.LRG.Z. 1986-10-13T05:11:16.60 10.0 undecidable manual PN 277 0.0452 -0.08 1.1
--.MMK.Z. 1986-10-13T05:11:16.40 10.0 undecidable manual PN 311 0.0439 1.88 0.1
--.PVY.Z. 1986-10-13T05:11:16.00 10.0 undecidable manual PN 91 0.0445 0.45 1
--.IVA.Z. 1986-10-13T05:11:15.30 10.0 undecidable manual PN 88 0.0439 0.81 0.7
--.LMR.Z. 1986-10-13T05:11:14.40 10.0 undecidable manual PN 276 0.0443 -0.71 0.8
--.LSD.Z. 1986-10-13T05:11:14.50 10.0 undecidable manual PN 301 0.0452 -2.13 0.1
--.FRF.Z. 1986-10-13T05:11:13.40 10.0 undecidable manual PN 279 0.0435 -0.55 0.9
--.DA9.Z. 1986-10-13T05:11:11.20 10.0 undecidable manual PN 291 0.0414 0.3 1.1
--.SOO.Z. 1986-10-13T05:11:11.80 10.0 undecidable manual PN 291 0.0423 -0.26 1.1
--.ORX.Z. 1986-10-13T05:11:10.40 10.0 undecidable manual PN 307 0.0416 -0.63 0.9
--.VDL.Z. 1986-10-13T05:11:09.40 10.0 undecidable manual PN 323 0.0399 0.87 0.7
--.OSS.Z. 1986-10-13T05:11:09.10 10.0 undecidable manual PN 330 0.039 1.96 0.1
--.STV.Z. 1986-10-13T05:11:09.70 10.0 undecidable manual PN 288 0.0402 0.76 0.8
--.TMA.Z. 1986-10-13T05:11:08.40 10.0 undecidable manual PN 316 0.0399 -0.07 1.1
--.TTG.Z. 1986-10-13T05:11:08.20 10.0 undecidable manual PN 94 0.0401 -0.5 1
--.SBF.Z. 1986-10-13T05:11:06.70 10.0 undecidable manual PN 283 0.0388 -0.05 1.2
--.VAI.Z. 1986-10-13T05:11:06.86 10.0 positive manual PN 313 0.0389 -0.11 2.3
--.NKY.Z. 1986-10-13T05:11:05.20 10.0 undecidable manual PN 89 0.038 -0.3 1.1
--.ROB.Z. 1986-10-13T05:11:04.00 10.0 undecidable manual PN 290 0.037 -0.01 1.2
--.BDV.Z. 1986-10-13T05:11:04.80 10.0 undecidable manual PN 96 0.0374 0.09 1.2
--.HCY.Z. 1986-10-13T05:11:00.50 10.0 undecidable manual PN 95 0.0351 -0.53 1
--.FIN.Z. 1986-10-13T05:11:00.30 10.0 undecidable manual PN 290 0.0346 -0.18 1.2
--.CKI.Z. 1986-10-13T05:11:00.51 10.0 negative manual PN 293 0.0349 -0.27 2.4
--.BRY.Z. 1986-10-13T05:10:59.80 10.0 undecidable manual PN 88 0.0349 -1.07 0.6
--.ORI.Z. 1986-10-13T05:10:59.83 10.0 negative manual PN 138 0.0338 0.74 1.8
--.MDI.Z. 1986-10-13T05:10:59.45 10.0 positive manual PN 319 0.0341 -0.19 2.4
--.GEN.Z. 1986-10-13T05:10:56.50 10.0 undecidable manual PN 296 0.0309 1.71 0.2
--.BRT.Z. 1986-10-13T05:10:55.38 10.0 positive manual PN 123 0.0321 -1.14 1.2
--.CO9.Z. 1986-10-13T05:10:54.20 10.0 undecidable manual PN 304 0.0295 1.36 0.4
--.CTI.Z. 1986-10-13T05:10:52.66 10.0 undecidable manual PN 340 0.0297 -0.3 1.2
--.SAL.Z. 1986-10-13T05:10:52.84 10.0 negative manual PN 324 0.0296 0.01 2.6
--.FIR.E. 1986-10-13T05:10:52.00 10.0 undecidable manual SN 300 0.015 -0.27 0.5
--.CVF.Z. 1986-10-13T05:10:51.50 10.0 undecidable manual PN 264 0.029 -0.34 1.2
--.LJU.Z. 1986-10-13T05:10:51.40 10.0 undecidable manual PN 15 0.0291 -0.6 1
--.BVT.Z. 1986-10-13T05:10:48.60 10.0 undecidable manual PN 302 0.0261 1.11 0.6
--.SGO.Z. 1986-10-13T05:10:46.00 10.0 undecidable manual PN 145 0.0255 -0.48 1.1
--.SOR.Z. 1986-10-13T05:10:42.50 10.0 undecidable manual PN 160 0.0224 0.72 0.9
--.TR9.Z. 1986-10-13T05:10:41.60 10.0 undecidable manual PN 140 0.0216 1.07 0.6
--.BDI.Z. 1986-10-13T05:10:37.20 10.0 positive manual PN 300 0.0199 -0.82 1.7
--.PS9.Z. 1986-10-13T05:10:36.27 10.0 undecidable manual PN 292 0.019 -0.42 1.2
--.PRO.Z. 1986-10-13T05:10:34.50 10.0 undecidable manual SG 345 0.0091 -1.67 0.1
--.MSC.Z. 1986-10-13T05:10:32.70 10.0 negative manual PN 162 0.0164 0.04 2.6
--.SGG.Z. 1986-10-13T05:10:32.20 10.0 negative manual PN 150 0.0159 0.39 2.4
--.FIR.Z. 1986-10-13T05:10:30.00 10.0 undecidable manual PN 300 0.015 -0.41 1.2
--.DUI.Z. 1986-10-13T05:10:30.40 10.0 undecidable manual PN 143 0.0141 1 0.7
--.MAO.Z. 1986-10-13T05:10:28.28 10.0 negative manual PN 251 0.0145 -1.47 0.7
--.RMP.Z. 1986-10-13T05:10:23.30 10.0 undecidable manual PN 199 0.0107 -0.64 1
--.SD1.Z. 1986-10-13T05:10:23.53 10.0 undecidable manual PN 160 0.0117 -1.87 0.2
--.CRE.Z. 1986-10-13T05:10:22.65 10.0 positive manual PN 306 0.0104 -0.8 1.8
--.PRO.Z. 1986-10-13T05:10:21.50 10.0 undecidable manual PG 345 0.0091 0.38 1.2
--.AM1.Z. 1986-10-13T05:10:14.20 10.0 undecidable manual PG 22 0.006 -0.5 1.1
--.ARV.Z. 1986-10-13T05:10:12.93 10.0 positive manual PG 338 0.0053 -0.51 1.1
--.AQU.Z. 1986-10-13T05:10:12.36 10.0 positive manual PG 167 0.0053 -1.02 1.4
--.ASS.Z. 1986-10-13T05:10:10.43 10.0 positive manual PG 286 0.004 -0.05 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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