Earthquake with magnitude of Md 2.5 on date 08-08-1987 and time 16:19:48 (Italy) in region 3 km NW Moggio Udinese (UD)

A magnitude Md 2.5 earthquake occured in region: 3 km NW Moggio Udinese (UD), on

  • 08-08-1987 14:19:48 (UTC)
  • 08-08-1987 16:19:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.4380, 13.1840 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
Moggio Udinese UD 3 1714 1714
Resiutta UD 6 309 2023
Amaro UD 10 823 2846
Dogna UD 10 175 3021
Chiusaforte UD 10 672 3693
Paularo UD 12 2623 6316
Resia UD 12 1033 7349
Venzone UD 12 2117 9466
Pontebba UD 12 1433 10899
Zuglio UD 12 595 11494
Arta Terme UD 13 2171 13665
Cavazzo Carnico UD 13 1052 14717
Tolmezzo UD 13 10440 25157
Ligosullo UD 14 116 25273
Bordano UD 15 754 26027
Treppo Carnico UD 15 618 26645
Verzegnis UD 16 863 27508
Paluzza UD 16 2217 29725
Sutrio UD 17 1332 31057
Cercivento UD 18 679 31736
Gemona del Friuli UD 18 10964 42700
Lauco UD 19 729 43429
Trasaghis UD 19 2227 45656
Montenars UD 20 538 46194
Lusevera UD 20 643 46837

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Udine (99169 inhabitants)
67 Km NE of Pordenone (51229 inhabitants)
99 Km NW of Trieste (204420 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
Bulletin
Rev1000
Md 2.5 1987-08-08
14:19:48
46.438 13.184 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 53619
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-08-08 14:19:48 ± 0.476
Latitude 46.4380 ± 0.0145
Longitude 13.1840 ± 0.0115
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 53619

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) 1836.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.01012
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 53619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:51:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CTI.Z. 1987-08-08T14:20:25.80 10.0 undecidable manual SN 250 1.1211 -0.48 0.2
--.CTI.Z. 1987-08-08T14:20:09.80 10.0 undecidable manual PN 250 1.1211 0.03 1.6
--.TRI.Z. 1987-08-08T14:20:05.00 10.0 undecidable manual PG 151 0.8214 0.25 1.4
--.FOI.Z. 1987-08-08T14:20:00.80 10.0 undecidable manual SG 299 0.3108 0.46 0.3
--.RBL.Z. 1987-08-08T14:19:58.87 10.0 undecidable manual SG 89 0.2553 0.25 0.7
--.FOI.Z. 1987-08-08T14:19:55.70 10.0 undecidable manual PG 299 0.3108 -0.14 2.1
--.RBL.Z. 1987-08-08T14:19:53.80 10.0 undecidable manual PG 89 0.2553 -0.42 0.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download