Earthquake with magnitude of Md 1.9 on date 15-02-1989 and time 19:30:29 (Italy) in region 8 km E Foligno (PG)

A magnitude Md 1.9 earthquake occured in region: 8 km E Foligno (PG), on

  • 15-02-1989 18:30:29 (UTC)
  • 15-02-1989 19:30:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.97, 12.81 at 8 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
Foligno PG 9 57155 57155
Valtopina PG 11 1398 58553
Trevi PG 11 8469 67022
Spello PG 11 8645 75667
Sellano PG 13 1079 76746
Montefalco PG 15 5679 82425
Nocera Umbra PG 16 5839 88264
Monte Cavallo MC 16 145 88409
Bevagna PG 17 5081 93490
Serravalle di Chienti MC 17 1070 94560
Campello sul Clitunno PG 17 2442 97002
Cannara PG 18 4305 101307
Cerreto di Spoleto PG 19 1075 102382
Assisi PG 19 28299 130681
Castel Ritaldi PG 20 3278 133959

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Foligno (57155 inhabitants)
37 Km E of Perugia (166134 inhabitants)
47 Km N of Terni (111501 inhabitants)
81 Km W of Teramo (54892 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
99 Km S of Fano (60888 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 1.9 1989-02-15
18:30:29
42.97 12.81 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 87079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-02-15 18:30:29 ± 0.105
Latitude 42.97 ± 0.01
Longitude 12.81 ± 0.02
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 87079

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) 1872.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.00526
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:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 87079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:21:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ALP.Z. 1989-02-15T18:30:51.20 10.0 undecidable manual SG 108 0.0053 0.29 0.1
--.ARV.Z. 1989-02-15T18:30:49.50 10.0 undecidable manual SG 10 0.0048 0.17 0.3
--.SS8.Z. 1989-02-15T18:30:42.30 10.0 undecidable manual SG 82 0.0028 0.25 0.2
--.CM8.Z. 1989-02-15T18:30:42.80 10.0 undecidable manual SG 47 0.003 0.05 1
--.ARV.Z. 1989-02-15T18:30:41.00 10.0 undecidable manual PG 10 0.0048 -0.05 1.5
--.ALP.Z. 1989-02-15T18:30:41.80 10.0 undecidable manual PG 108 0.0053 -0.16 0.8
--.CM8.Z. 1989-02-15T18:30:37.10 10.0 undecidable manual PG 47 0.003 -0.14 2.4
--.SS8.Z. 1989-02-15T18:30:36.80 10.0 undecidable manual PG 82 0.0028 -0.05 1.8
--.ASS.Z. 1989-02-15T18:30:36.00 10.0 undecidable manual SG 309 0.0013 -0.01 0.7
--.ASS.Z. 1989-02-15T18:30:33.50 10.0 undecidable manual PG 309 0.0013 0.14 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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