Earthquake with magnitude of Md 2.5 on date 22-04-1986 and time 22:55:56 (Italy) in region 9 km W Auronzo di Cadore (BL)

A magnitude Md 2.5 earthquake occured in region: 9 km W Auronzo di Cadore (BL), on

  • 22-04-1986 20:55:56 (UTC)
  • 22-04-1986 22:55:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.52, 12.33 at 10 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
Auronzo di Cadore BL 9 3350 3350
Calalzo di Cadore BL 9 2085 5435
Lozzo di Cadore BL 10 1383 6818
Domegge di Cadore BL 10 2441 9259
Lorenzago di Cadore BL 11 549 9808
Vigo di Cadore BL 11 1440 11248
Pieve di Cadore BL 11 3794 15042
Valle di Cadore BL 12 1964 17006
San Vito di Cadore BL 12 1857 18863
Borca di Cadore BL 13 781 19644
Vodo Cadore BL 13 853 20497
Perarolo di Cadore BL 14 380 20877
Cortina d'Ampezzo BL 15 5907 26784
Cibiana di Cadore BL 15 393 27177
Danta di Cadore BL 15 463 27640
Comelico Superiore BL 16 2238 29878
San Nicolò di Comelico BL 16 406 30284
Santo Stefano di Cadore BL 17 2609 32893
Zoppè di Cadore BL 20 229 33122
Sesto BZ 20 1893 35015

Municipalities with at least 50000 inhabitants

An earthquake occurred to
68 Km NW of Pordenone (51229 inhabitants)
75 Km E of Bolzano (106441 inhabitants)
86 Km NW of Udine (99169 inhabitants)
96 Km N of Treviso (83731 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 2.5 1986-04-22
20:55:56
46.53 12.33 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 25919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-04-22 20:55:56 ± 0.594
Latitude 46.53 ± 0.05
Longitude 12.33 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 25919

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) 6846
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.01149
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 25919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:27:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.TRI.Z. 1986-04-22T20:56:37.00 10.0 undecidable manual SN 129 0.0115 -0.13 0.7
--.RBL.Z. 1986-04-22T20:56:24.00 10.0 undecidable manual SG 95 0.0077 -1.47 0.2
--.TRI.Z. 1986-04-22T20:56:21.00 10.0 undecidable manual PN 129 0.0115 1.2 0.7
--.VOY.Z. 1986-04-22T20:56:19.60 10.0 undecidable manual PN 114 0.0106 1.16 0.8
--.CTI.Z. 1986-04-22T20:56:19.20 10.0 undecidable manual SG 225 0.006 -0.3 0.7
--.RBL.Z. 1986-04-22T20:56:12.00 10.0 undecidable manual PG 95 0.0077 -1.05 1
--.CTI.Z. 1986-04-22T20:56:09.50 10.0 undecidable manual PG 225 0.006 -0.11 2
--.FO1.Z. 1986-04-22T20:56:08.50 10.0 undecidable manual SG 77 0.0028 0.3 0.8
--.FO1.Z. 1986-04-22T20:56:03.00 10.0 undecidable manual PG 77 0.0028 -0.09 2.2
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