Earthquake with magnitude of Md 2.0 on date 08-02-1990 and time 04:55:46 (Italy) in region 6 km E Sigillo (PG)

A magnitude Md 2.0 earthquake occured in region: 6 km E Sigillo (PG), on

  • 08-02-1990 03:55:46 (UTC)
  • 08-02-1990 04:55:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3400, 12.8160 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
Sigillo PG 6 2404 2404
Fossato di Vico PG 7 2840 5244
Fabriano AN 7 31480 36724
Costacciaro PG 9 1216 37940
Sassoferrato AN 11 7285 45225
Gualdo Tadino PG 12 15208 60433
Scheggia e Pascelupo PG 14 1393 61826
Cerreto d'Esi AN 14 3817 65643
Genga AN 14 1797 67440
Esanatoglia MC 14 2034 69474
Serra Sant'Abbondio PU 17 1027 70501
Matelica MC 18 9981 80482
Gubbio PG 19 32216 112698
Fiuminata MC 19 1402 114100

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NE of Perugia (166134 inhabitants)
44 Km N of Foligno (57155 inhabitants)
59 Km S of Fano (60888 inhabitants)
64 Km S of Pesaro (94582 inhabitants)
65 Km W of Ancona (100861 inhabitants)
77 Km E of Arezzo (99543 inhabitants)
83 Km S of Rimini (147750 inhabitants)
88 Km N of Terni (111501 inhabitants)
100 Km SE of Cesena (96758 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 2.0 1990-02-08
03:55:46
43.34 12.816 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 109779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-02-08 03:55:46 ± 0.305
Latitude 43.3400 ± 0.0141
Longitude 12.8160 ± 0.0301
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 109779

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) 2899.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00429
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 109779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:42:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.RM8.Z. 1990-02-08T03:56:05.52 10.0 undecidable manual SG 143 0.4773 1.52 0
--.ASS.Z. 1990-02-08T03:55:58.50 10.0 undecidable manual SG 203 0.2997 0.23 0.5
--.CIO.Z. 1990-02-08T03:55:57.75 10.0 undecidable manual SG 121 0.2775 0.2 0.8
--.RM8.Z. 1990-02-08T03:55:56.00 10.0 undecidable manual PG 143 0.4773 -0.67 0.6
--.ARV.Z. 1990-02-08T03:55:54.83 10.0 undecidable manual SG 30 0.1776 0.34 0.5
--.ASS.Z. 1990-02-08T03:55:53.50 10.0 undecidable manual PG 203 0.2997 0.14 1.4
--.CIO.Z. 1990-02-08T03:55:52.26 10.0 undecidable manual PG 121 0.2775 -0.69 1.4
--.ARV.Z. 1990-02-08T03:55:51.35 10.0 negative manual PG 30 0.1776 0.17 2.8
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