Earthquake with magnitude of Md 2.1 on date 05-09-1998 and time 03:38:33 (Italy) in region 8 km NW Sellano (PG)

A magnitude Md 2.1 earthquake occured in region: 8 km NW Sellano (PG), on

  • 05-09-1998 01:38:33 (UTC)
  • 05-09-1998 03:38:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9530, 12.8810 at 17 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 11 145 1224
Trevi PG 14 8469 9693
Foligno PG 14 57155 66848
Serravalle di Chienti MC 15 1070 67918
Cerreto di Spoleto PG 15 1075 68993
Preci PG 15 724 69717
Valtopina PG 16 1398 71115
Campello sul Clitunno PG 17 2442 73557
Visso MC 17 1107 74664
Pieve Torina MC 17 1458 76122
Spello PG 18 8645 84767
Nocera Umbra PG 19 5839 90606
Fiordimonte MC 20 202 90808
Montefalco PG 20 5679 96487
Muccia MC 20 915 97402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
75 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
99 Km SE of Arezzo (99543 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 2.1 1998-09-05
01:38:33
42.953 12.881 17 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 350189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-09-05 01:38:33 ± 0.254
Latitude 42.9530 ± 0.0070
Longitude 12.8810 ± 0.0117
Depth (km) 17 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 350189

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) 1226.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00526
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 350189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:28:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-09-05T01:38:54.60 10.0 undecidable manual SG 194 0.5883 -0.66 0
--.MNS.Z. 1998-09-05T01:38:46.16 10.0 undecidable manual PG 194 0.5883 0.25 0.9
--.SNTG.Z. 1998-09-05T01:38:45.90 10.0 undecidable manual SG 8 0.2997 0.01 0.8
--.NRCA.Z. 1998-09-05T01:38:43.70 10.0 undecidable manual SG 125 0.2109 0.05 0.8
--.ASS.Z. 1998-09-05T01:38:42.60 10.0 undecidable manual SG 303 0.1998 -0.19 0.6
--.SNTG.Z. 1998-09-05T01:38:40.58 10.0 undecidable manual PG 8 0.2997 -0.23 1.4
--.NRCA.Z. 1998-09-05T01:38:39.20 10.0 undecidable manual PG 125 0.2109 0.05 2.1
--.ASS.Z. 1998-09-05T01:38:39.27 10.0 undecidable manual PG 303 0.1998 0.25 1.3
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