Earthquake with magnitude of Md 2.0 on date 09-09-1987 and time 09:22:05 (Italy) in region 5 km W Fossato di Vico (PG)

A magnitude Md 2.0 earthquake occured in region: 5 km W Fossato di Vico (PG), on

  • 09-09-1987 07:22:05 (UTC)
  • 09-09-1987 09:22:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.29, 12.7 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
Fossato di Vico PG 5 2840 2840
Sigillo PG 6 2404 5244
Costacciaro PG 8 1216 6460
Gualdo Tadino PG 9 15208 21668
Gubbio PG 12 32216 53884
Scheggia e Pascelupo PG 13 1393 55277
Valfabbrica PG 17 3389 58666
Fabriano AN 17 31480 90146

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Perugia (166134 inhabitants)
37 Km N of Foligno (57155 inhabitants)
67 Km SW of Fano (60888 inhabitants)
69 Km E of Arezzo (99543 inhabitants)
71 Km S of Pesaro (94582 inhabitants)
75 Km W of Ancona (100861 inhabitants)
81 Km N of Terni (111501 inhabitants)
86 Km S of Rimini (147750 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 2.0 1987-09-09
07:22:05
43.29 12.7 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 54999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-09-09 07:22:05 ± 0.116
Latitude 43.29 ± 0.01
Longitude 12.70 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 54999

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) 1294.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 210
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.003
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 54999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:52:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CM8.Z. 1987-09-09T07:22:17.96 10.0 undecidable manual SG 106 0.003 0.28 0.2
--.ARV.Z. 1987-09-09T07:22:15.78 10.0 undecidable manual SG 39 0.0024 0.14 0.4
--.ASS.Z. 1987-09-09T07:22:14.48 10.0 undecidable manual SG 189 0.002 0.09 0.5
--.CM8.Z. 1987-09-09T07:22:12.90 10.0 negative manual PG 106 0.003 -0.24 0.9
--.ARV.Z. 1987-09-09T07:22:11.17 10.0 undecidable manual PG 39 0.0024 0.02 1.4
--.ASS.Z. 1987-09-09T07:22:10.40 10.0 positive manual PG 189 0.002 -0.03 2.7
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