Earthquake with magnitude of Md 2.3 on date 07-06-1989 and time 04:17:00 (UTC) in region 5 km N Norcia (PG)

A magnitude Md 2.3 earthquake occured in region: 5 km N Norcia (PG), on

  • 07-06-1989 04:17:00 (UTC)
  • 07-06-1989 06:17:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8350, 13.0940 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
Norcia PG 5 4957 4957
Preci PG 7 724 5681
Castelsantangelo sul Nera MC 8 281 5962
Visso MC 11 1107 7069
Ussita MC 13 444 7513
Cascia PG 14 3217 10730
Cerreto di Spoleto PG 15 1075 11805
Sellano PG 15 1079 12884
Arquata del Tronto AP 18 1178 14062
Poggiodomo PG 19 117 14179
Monte Cavallo MC 19 145 14324
Montegallo AP 20 523 14847
Accumoli RI 20 667 15514

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km N of Tivoli (56533 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 2.3 1989-06-07
04:17:00
42.835 13.094 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 92839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-06-07 04:17:00 ± 0.432
Latitude 42.8350 ± 0.0260
Longitude 13.0940 ± 0.0289
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 92839

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) 3731.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 206
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00316
Epicentral distance of station farthest from the epicenter (degree) 0.00720
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 92839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:27:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AM8.Z. 1989-06-07T04:17:30.00 10.0 undecidable manual SG 27 0.7992 1.87 0
--.ARV.Z. 1989-06-07T04:17:24.00 10.0 undecidable manual SG 350 0.666 0.08 0.5
--.AM8.Z. 1989-06-07T04:17:16.30 10.0 undecidable manual PG 27 0.7992 -0.11 1
--.ASS.Z. 1989-06-07T04:17:15.60 10.0 undecidable manual SG 305 0.3885 0.59 0.3
--.CM8.Z. 1989-06-07T04:17:13.30 10.0 undecidable manual SG 5 0.3552 -0.64 0.4
--.ARV.Z. 1989-06-07T04:17:13.40 10.0 undecidable manual PG 350 0.666 -0.58 0.6
--.ALP.Z. 1989-06-07T04:17:13.40 10.0 undecidable manual SG 98 0.3552 -0.2 0.8
--.ASS.Z. 1989-06-07T04:17:09.00 10.0 undecidable manual PG 305 0.3885 0.16 1.3
--.ALP.Z. 1989-06-07T04:17:08.00 10.0 undecidable manual PG 98 0.3552 -0.03 2.7
--.CM8.Z. 1989-06-07T04:17:08.00 10.0 undecidable manual PG 5 0.3552 -0.22 2.5
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