Earthquake with magnitude of Md 3.5 on date 26-09-1986 and time 03:49:34 (Italy) in region 4 km N Lucoli (AQ)

A magnitude Md 3.5 earthquake occured in region: 4 km N Lucoli (AQ), on

  • 26-09-1986 01:49:34 (UTC)
  • 26-09-1986 03:49:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.33, 13.34 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
Lucoli AQ 5 1011 1011
L'Aquila AQ 5 69753 70764
Tornimparte AQ 6 3187 73951
Scoppito AQ 9 3727 77678
Ocre AQ 12 1167 78845
Pizzoli AQ 12 4326 83171
Fossa AQ 13 721 83892
Barete AQ 14 737 84629
Sant'Eusanio Forconese AQ 16 394 85023
Rocca di Cambio AQ 16 533 85556
Poggio Picenze AQ 16 1136 86692
Villa Sant'Angelo AQ 17 424 87116
Cagnano Amiterno AQ 17 1369 88485
Borgorose RI 18 4591 93076
San Demetrio ne' Vestini AQ 18 1854 94930
Fiamignano RI 19 1413 96343
Rocca di Mezzo AQ 20 1526 97869

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of L'Aquila (69753 inhabitants)
47 Km SW of Teramo (54892 inhabitants)
61 Km NE of Tivoli (56533 inhabitants)
63 Km E of Terni (111501 inhabitants)
63 Km NE of Guidonia Montecelio (88673 inhabitants)
68 Km W of Chieti (51815 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
73 Km W of Pescara (121014 inhabitants)
86 Km NE of Velletri (53303 inhabitants)
86 Km NE of Roma (2864731 inhabitants)
87 Km SE of Foligno (57155 inhabitants)
100 Km NE of Aprilia (73446 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 3.5 1986-09-26
01:49:34
42.33 13.35 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 34709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-26 01:49:34 ± 0.194
Latitude 42.33 ± 0.02
Longitude 13.35 ± 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 34709

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) 2480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.0004
Epicentral distance of station farthest from the epicenter (degree) 0.06759
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitude information

Md:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 34709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:35:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.HAU.Z. 1986-09-26T01:51:23.70 10.0 undecidable manual PN 321 0.0676 -0.29 0.9
--.CDF.Z. 1986-09-26T01:51:22.70 10.0 undecidable manual PN 327 0.0668 -0.03 0.9
--.LPL.Z. 1986-09-26T01:51:01.00 10.0 undecidable manual PN 306 0.0515 1.54 0.3
--.LRG.Z. 1986-09-26T01:50:53.70 10.0 undecidable manual PN 284 0.0471 0.98 0.7
--.LMR.Z. 1986-09-26T01:50:51.40 10.0 undecidable manual PN 283 0.0459 0.41 1.1
--.FRF.Z. 1986-09-26T01:50:50.50 10.0 undecidable manual PN 286 0.0454 0.3 1.1
--.VAI.Z. 1986-09-26T01:50:47.50 10.0 undecidable manual PN 318 0.0434 0.44 1.1
--.SBF.Z. 1986-09-26T01:50:43.80 10.0 undecidable manual PN 291 0.0411 0.12 1.2
--.ROB.Z. 1986-09-26T01:50:42.50 10.0 undecidable manual PN 298 0.0399 0.7 1
--.RBL.Z. 1986-09-26T01:50:37.50 10.0 undecidable manual PN 2 0.0369 0.22 1.3
--.CTI.Z. 1986-09-26T01:50:35.00 10.0 undecidable manual PN 342 0.0351 0.5 1.2
--.BVT.Z. 1986-09-26T01:50:28.00 10.0 undecidable manual PN 311 0.03 1.3 0.5
--.TRI.Z. 1986-09-26T01:50:27.00 10.0 undecidable manual PN 4 0.0304 -0.38 1.4
--.CVF.Z. 1986-09-26T01:50:26.60 10.0 undecidable manual PN 275 0.0297 0.31 1.4
--.SGO.Z. 1986-09-26T01:50:13.70 10.0 undecidable manual PN 139 0.0207 1.22 0.6
--.DUI.Z. 1986-09-26T01:50:12.00 10.0 undecidable manual SG 128 0.0096 0.88 0.3
--.ASS.Z. 1986-09-26T01:50:05.00 10.0 undecidable manual SG 325 0.0079 -0.46 0.8
--.CRE.Z. 1986-09-26T01:50:03.00 10.0 undecidable manual PN 322 0.0147 -0.41 1.5
--.MAO.Z. 1986-09-26T01:50:02.00 10.0 undecidable manual PN 273 0.0146 -1.11 0.8
--.RMP.Z. 1986-09-26T01:50:00.00 10.0 undecidable manual SG 222 0.0063 0.43 0.9
--.SD1.Z. 1986-09-26T01:49:59.00 10.0 undecidable manual SG 150 0.0064 -0.77 0.5
--.DUI.Z. 1986-09-26T01:49:55.00 10.0 undecidable manual PG 128 0.0096 -0.45 1.5
--.ARV.Z. 1986-09-26T01:49:55.50 10.0 positive manual PN 346 0.0108 -1.88 0.5
--.ASS.Z. 1986-09-26T01:49:51.50 10.0 undecidable manual PG 325 0.0079 -0.68 2.5
--.SD1.Z. 1986-09-26T01:49:47.20 10.0 undecidable manual PG 150 0.0064 -1.69 0.4
--.RMP.Z. 1986-09-26T01:49:47.20 10.0 undecidable manual PG 222 0.0063 -1.58 0.4
--.AQU.Z. 1986-09-26T01:49:36.00 10.0 positive manual PG 62 0.0004 0.52 2.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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