Earthquake with magnitude of Md 2.5 on date 01-02-1988 and time 17:51:44 (Italy) in region 4 km NE Amaro (UD)

A magnitude Md 2.5 earthquake occured in region: 4 km NE Amaro (UD), on

  • 01-02-1988 16:51:44 (UTC)
  • 01-02-1988 17:51:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4040, 13.1120 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
Amaro UD 4 823 823
Moggio Udinese UD 7 1714 2537
Cavazzo Carnico UD 7 1052 3589
Tolmezzo UD 7 10440 14029
Venzone UD 8 2117 16146
Resiutta UD 8 309 16455
Zuglio UD 9 595 17050
Verzegnis UD 9 863 17913
Bordano UD 10 754 18667
Arta Terme UD 10 2171 20838
Lauco UD 14 729 21567
Trasaghis UD 14 2227 23794
Paularo UD 14 2623 26417
Gemona del Friuli UD 14 10964 37381
Villa Santina UD 14 2233 39614
Resia UD 15 1033 40647
Chiusaforte UD 15 672 41319
Sutrio UD 15 1332 42651
Treppo Carnico UD 15 618 43269
Ligosullo UD 15 116 43385
Paluzza UD 16 2217 45602
Dogna UD 16 175 45777
Osoppo UD 17 2936 48713
Cercivento UD 17 679 49392
Montenars UD 17 538 49930
Enemonzo UD 18 1319 51249
Artegna UD 18 2885 54134
Preone UD 19 246 54380
Pontebba UD 19 1433 55813
Raveo UD 19 458 56271
Lusevera UD 19 643 56914
Magnano in Riviera UD 20 2336 59250
Ravascletto UD 20 536 59786

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Udine (99169 inhabitants)
61 Km NE of Pordenone (51229 inhabitants)
98 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
M 2.0
1988-02-01
16:51:44
46.404 13.112 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 62089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-02-01 16:51:44 ± 0.154
Latitude 46.4040 ± 0.0089
Longitude 13.1120 ± 0.0082
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 62089

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) 1170.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.00963
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 62089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:59:03

M:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 62089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:44:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CTI.Z. 1988-02-01T16:52:22.18 10.0 undecidable manual SG 250 1.0656 -0.23 0.2
--.KBA.Z. 1988-02-01T16:52:10.29 10.0 undecidable manual SG 12 0.6882 0.07 0.9
--.CTI.Z. 1988-02-01T16:52:06.38 10.0 undecidable manual PG 250 1.0656 -0.18 0.8
--.TRI.Z. 1988-02-01T16:52:02.80 10.0 undecidable manual PG 146 0.8214 0.74 0.2
--.KBA.Z. 1988-02-01T16:51:59.50 10.0 positive manual PG 12 0.6882 -0.02 3.3
--.RBL.Z. 1988-02-01T16:51:57.15 10.0 undecidable manual SG 82 0.3108 0.01 0.6
--.FVI.Z. 1988-02-01T16:51:56.70 10.0 undecidable manual SG 309 0.2886 0.29 0.2
--.FVI.Z. 1988-02-01T16:51:51.58 10.0 undecidable manual PG 309 0.2886 0.04 1.7
--.RBL.Z. 1988-02-01T16:51:51.78 10.0 undecidable manual PG 82 0.3108 -0.19 1
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