Earthquake with magnitude of Md 2.0 on date 23-03-1998 and time 21:57:28 (Italy) in region 8 km N Sellano (PG)

A magnitude Md 2.0 earthquake occured in region: 8 km N Sellano (PG), on

  • 23-03-1998 20:57:28 (UTC)
  • 23-03-1998 21:57:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9580, 12.9070 at 19 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 8 1079 1079
Monte Cavallo MC 9 145 1224
Serravalle di Chienti MC 13 1070 2294
Preci PG 14 724 3018
Visso MC 15 1107 4125
Pieve Torina MC 15 1458 5583
Cerreto di Spoleto PG 15 1075 6658
Trevi PG 16 8469 15127
Foligno PG 17 57155 72282
Valtopina PG 17 1398 73680
Fiordimonte MC 17 202 73882
Muccia MC 18 915 74797
Campello sul Clitunno PG 19 2442 77239
Pievebovigliana MC 19 866 78105
Ussita MC 19 444 78549
Nocera Umbra PG 20 5839 84388
Spello PG 20 8645 93033

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
49 Km NE of Terni (111501 inhabitants)
73 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
89 Km NE of Viterbo (67173 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
Bulletin
Rev1000
Md 2.0 1998-03-23
20:57:28
42.958 12.907 19 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 327869
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-03-23 20:57:28 ± 0.426
Latitude 42.9580 ± 0.0110
Longitude 12.9070 ± 0.0204
Depth (km) 19 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 327869

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) 2063.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00534
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 327869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:07:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-03-23T20:57:49.98 10.0 undecidable manual SG 196 0.5883 0.66 0.2
--.ARV.Z. 1998-03-23T20:57:48.50 10.0 undecidable manual SG 2 0.5439 0.95 0
--.SNTG.Z. 1998-03-23T20:57:40.00 10.0 undecidable manual SG 4 0.2997 -0.03 0.7
--.MNS.Z. 1998-03-23T20:57:39.94 10.0 undecidable manual PG 196 0.5883 -0.38 0.9
--.ARV.Z. 1998-03-23T20:57:38.50 10.0 undecidable manual PG 2 0.5439 -0.8 0.3
--.ASS.Z. 1998-03-23T20:57:37.28 10.0 undecidable manual SG 299 0.2109 -0.34 0.5
--.NRCA.Z. 1998-03-23T20:57:36.92 10.0 undecidable manual SG 129 0.1887 -0.22 0.6
--.SNTG.Z. 1998-03-23T20:57:35.00 10.0 undecidable manual PG 4 0.2997 0.04 1.8
--.NRCA.Z. 1998-03-23T20:57:33.36 10.0 negative manual PG 129 0.1887 0.07 3.5
--.ASS.Z. 1998-03-23T20:57:33.80 10.0 undecidable manual PG 299 0.2109 0.23 1.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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