Earthquake with magnitude of Md 3.0 on date 25-02-1989 and time 00:15:21 (Italy) in region 5 km W Sellano (PG)

A magnitude Md 3.0 earthquake occured in region: 5 km W Sellano (PG), on

  • 24-02-1989 23:15:21 (UTC)
  • 25-02-1989 00:15:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.87, 12.87 at 5 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
Sellano PG 5 1079 1079
Cerreto di Spoleto PG 7 1075 2154
Campello sul Clitunno PG 9 2442 4596
Trevi PG 10 8469 13065
Vallo di Nera PG 11 364 13429
Preci PG 14 724 14153
Sant'Anatolia di Narco PG 15 564 14717
Foligno PG 17 57155 71872
Castel Ritaldi PG 17 3278 75150
Scheggino PG 17 461 75611
Monte Cavallo MC 18 145 75756
Montefalco PG 18 5679 81435
Poggiodomo PG 18 117 81552
Spoleto PG 18 38218 119770
Visso MC 19 1107 120877

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SE of Foligno (57155 inhabitants)
39 Km NE of Terni (111501 inhabitants)
47 Km SE of Perugia (166134 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
72 Km W of Teramo (54892 inhabitants)
80 Km NE of Viterbo (67173 inhabitants)
97 Km N of Guidonia Montecelio (88673 inhabitants)
99 Km SW of Ancona (100861 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 3.0
ML-VAX 2.2
1989-02-24
23:15:21
42.87 12.87 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 87559
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-02-24 23:15:21 ± 0.108
Latitude 42.87 ± 0.01
Longitude 12.87 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 87559

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) 1005.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.01214
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 87559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:22:09

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 87559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.RDP.Z. 1989-02-24T23:16:00.35 10.0 undecidable manual SN 185 0.01 0.46 0.3
--.RMP.Z. 1989-02-24T23:15:57.84 10.0 undecidable manual SG 186 0.0096 -0.7 0.2
--.CRE.Z. 1989-02-24T23:15:57.22 10.0 undecidable manual SG 318 0.009 0.49 0.3
--.AZI.Z. 1989-02-24T23:15:56.40 10.0 undecidable manual SG 154 0.0087 0.35 0.4
--.SDI.Z. 1989-02-24T23:15:47.54 10.0 undecidable manual PN 148 0.0121 0.62 0.5
--.PGD.Z. 1989-02-24T23:15:46.00 10.0 undecidable manual PN 320 0.0117 -0.34 0.9
--.RDP.Z. 1989-02-24T23:15:44.00 10.0 undecidable manual PN 185 0.01 0.31 1.1
--.ARV.Z. 1989-02-24T23:15:44.80 10.0 undecidable manual SG 4 0.0057 0.05 0.7
--.RMP.Z. 1989-02-24T23:15:42.50 10.0 undecidable manual PG 186 0.0096 -0.41 0.9
--.CRE.Z. 1989-02-24T23:15:42.61 10.0 undecidable manual PG 318 0.009 0.75 0.4
--.AZI.Z. 1989-02-24T23:15:41.52 10.0 undecidable manual PG 154 0.0087 0.27 1.2
--.MNS.Z. 1989-02-24T23:15:40.00 10.0 undecidable manual SG 196 0.0045 -0.55 0.3
--.ALP.Z. 1989-02-24T23:15:40.70 10.0 undecidable manual SG 99 0.0046 -0.34 0.8
--.AM8.Z. 1989-02-24T23:15:39.40 10.0 undecidable manual PG 37 0.0078 0.18 1.5
--.CM8.Z. 1989-02-24T23:15:36.20 10.0 undecidable manual SG 31 0.0034 -0.2 0.9
--.AQU.Z. 1989-02-24T23:15:35.93 10.0 undecidable manual PG 142 0.0057 0.77 0.4
--.ARV.Z. 1989-02-24T23:15:34.36 10.0 undecidable manual PG 4 0.0057 -0.58 0.8
--.MC8.Z. 1989-02-24T23:15:34.90 10.0 undecidable manual PG 42 0.0053 0.86 0.3
--.SS8.Z. 1989-02-24T23:15:33.40 10.0 undecidable manual SG 61 0.0027 0.25 0.9
--.ALP.Z. 1989-02-24T23:15:32.30 10.0 undecidable manual PG 99 0.0046 -0.51 1.9
--.MNS.Z. 1989-02-24T23:15:32.15 10.0 positive manual PG 196 0.0045 -0.37 2.5
--.ASS.Z. 1989-02-24T23:15:30.79 10.0 undecidable manual SG 320 0.0022 -0.6 0.3
--.CM8.Z. 1989-02-24T23:15:29.70 10.0 undecidable manual PG 31 0.0034 -0.42 2.3
--.SS8.Z. 1989-02-24T23:15:28.30 10.0 undecidable manual PG 61 0.0027 0.05 3.4
--.ASS.Z. 1989-02-24T23:15:27.23 10.0 undecidable manual PG 320 0.0022 0 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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