Earthquake with magnitude of Md 2.2 on date 23-03-1998 and time 03:59:50 (Italy) in region 7 km N Sellano (PG)

A magnitude Md 2.2 earthquake occured in region: 7 km N Sellano (PG), on

  • 23-03-1998 02:59:50 (UTC)
  • 23-03-1998 03:59:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9490, 12.9410 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 7 1079 1079
Monte Cavallo MC 7 145 1224
Preci PG 11 724 1948
Visso MC 12 1107 3055
Serravalle di Chienti MC 14 1070 4125
Pieve Torina MC 14 1458 5583
Cerreto di Spoleto PG 14 1075 6658
Fiordimonte MC 16 202 6860
Ussita MC 16 444 7304
Muccia MC 17 915 8219
Pievebovigliana MC 17 866 9085
Trevi PG 18 8469 17554
Castelsantangelo sul Nera MC 18 281 17835
Foligno PG 19 57155 74990
Campello sul Clitunno PG 20 2442 77432
Valtopina PG 20 1398 78830

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
49 Km NE of Terni (111501 inhabitants)
70 Km W of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
100 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
Bulletin
Rev1000
Md 2.2 1998-03-23
02:59:50
42.949 12.941 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 327209
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-03-23 02:59:50 ± 0.245
Latitude 42.9490 ± 0.0115
Longitude 12.9410 ± 0.0269
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 327209

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) 2533.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00672
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 327209
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:06:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1998-03-23T03:00:18.80 10.0 undecidable manual SG 351 0.7437 0.84 0.4
--.MNS.Z. 1998-03-23T03:00:12.37 10.0 undecidable manual SG 198 0.5883 -0.53 0.7
--.ARV.Z. 1998-03-23T03:00:10.65 10.0 undecidable manual SG 0 0.5439 -0.81 0.4
--.FB9.Z. 1998-03-23T03:00:06.85 10.0 undecidable manual PG 351 0.7437 0.31 1.6
--.MNS.Z. 1998-03-23T03:00:02.39 10.0 undecidable manual PG 198 0.5883 -1.22 0.7
--.SNTG.Z. 1998-03-23T03:00:02.98 10.0 undecidable manual SG 0 0.3108 0.13 1
--.ARV.Z. 1998-03-23T03:00:02.13 10.0 undecidable manual PG 0 0.5439 -0.65 1.4
--.ASS.Z. 1998-03-23T03:00:01.37 10.0 undecidable manual SG 298 0.2331 1.05 0.3
--.NRCA.Z. 1998-03-23T02:59:58.93 10.0 undecidable manual SG 132 0.1665 1.2 0.2
--.SNTG.Z. 1998-03-23T02:59:57.30 10.0 undecidable manual PG 0 0.3108 -0.51 1.8
--.ASS.Z. 1998-03-23T02:59:56.95 10.0 undecidable manual PG 298 0.2331 0.6 1.6
--.NRCA.Z. 1998-03-23T02:59:55.34 10.0 undecidable manual PG 132 0.1665 0.48 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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