Earthquake with magnitude of Md 3.1 on date 27-04-1986 and time 05:45:40 (Italy) in region 3 km NE Capitignano (AQ)

A magnitude Md 3.1 earthquake occured in region: 3 km NE Capitignano (AQ), on

  • 27-04-1986 03:45:40 (UTC)
  • 27-04-1986 05:45:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.54, 13.32 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
Capitignano AQ 3 665 665
Campotosto AQ 4 542 1207
Montereale AQ 7 2581 3788
Amatrice RI 10 2657 6445
Barete AQ 11 737 7182
Pizzoli AQ 12 4326 11508
Cagnano Amiterno AQ 12 1369 12877
Crognaleto TE 13 1297 14174
Cittareale RI 16 482 14656
Borbona RI 16 617 15273
Cortino TE 18 656 15929
Fano Adriano TE 18 296 16225
Accumoli RI 18 667 16892
Posta RI 19 694 17586
Pietracamela TE 19 271 17857
Scoppito AQ 20 3727 21584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of L'Aquila (69753 inhabitants)
34 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
72 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km SE of Perugia (166134 inhabitants)
100 Km NE of Roma (2864731 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 3.1 1986-04-27
03:45:40
42.54 13.33 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 26099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-04-27 03:45:40 ± 0.202
Latitude 42.54 ± 0.01
Longitude 13.33 ± 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 26099

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) 2144.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.0017
Epicentral distance of station farthest from the epicenter (degree) 0.03327
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 26099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:27:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CTI.Z. 1986-04-27T03:47:21.50 10.0 undecidable manual SN 341 0.0333 1.01 0.2
--.CTI.Z. 1986-04-27T03:46:39.50 10.0 undecidable manual PN 341 0.0333 1.22 0.3
--.CRE.Z. 1986-04-27T03:46:29.00 10.0 undecidable manual SN 317 0.0132 1.55 0.1
--.AM8.Z. 1986-04-27T03:46:16.78 10.0 undecidable manual SG 11 0.0092 0.35 0.7
--.ARV.Z. 1986-04-27T03:46:15.00 10.0 undecidable manual SG 343 0.0089 -0.46 1
--.CRE.Z. 1986-04-27T03:46:08.50 10.0 undecidable manual PN 317 0.0132 0.85 0.9
--.ASS.Z. 1986-04-27T03:46:05.50 10.0 undecidable manual SG 316 0.0064 -0.99 0.4
--.ARV.Z. 1986-04-27T03:46:00.00 10.0 undecidable manual PG 343 0.0089 -0.73 1.3
--.AM8.Z. 1986-04-27T03:46:00.25 10.0 undecidable manual PG 11 0.0092 -1.04 0.8
--.RDP.Z. 1986-04-27T03:45:59.50 10.0 undecidable manual PG 210 0.0081 0.5 1.6
--.MNS.Z. 1986-04-27T03:45:58.50 10.0 undecidable manual SG 251 0.0045 -1.03 0.3
--.SD1.Z. 1986-04-27T03:45:57.50 10.0 undecidable manual PG 156 0.0081 -1.56 0.3
--.ASS.Z. 1986-04-27T03:45:55.50 10.0 undecidable manual PG 316 0.0064 -0.05 1.9
--.ALP.Z. 1986-04-27T03:45:52.21 10.0 undecidable manual SG 36 0.0027 0.01 0.8
--.MNS.Z. 1986-04-27T03:45:51.00 10.0 undecidable manual PG 251 0.0045 -0.53 1.5
--.AQU.Z. 1986-04-27T03:45:48.50 10.0 undecidable manual SG 163 0.0017 0.15 1.1
--.ALP.Z. 1986-04-27T03:45:47.10 10.0 undecidable manual PG 36 0.0027 -0.29 1.8
--.AQU.Z. 1986-04-27T03:45:45.50 10.0 negative manual PG 163 0.0017 0.42 3.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download