Earthquake with magnitude of Md 2.3 on date 15-02-1998 and time 03:34:52 (Italy) in region 7 km NW Sellano (PG)

A magnitude Md 2.3 earthquake occured in region: 7 km NW Sellano (PG), on

  • 15-02-1998 02:34:52 (UTC)
  • 15-02-1998 03:34:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9450, 12.8760 at 10 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 12 145 1224
Trevi PG 13 8469 9693
Foligno PG 14 57155 66848
Cerreto di Spoleto PG 14 1075 67923
Preci PG 15 724 68647
Serravalle di Chienti MC 16 1070 69717
Campello sul Clitunno PG 16 2442 72159
Valtopina PG 16 1398 73557
Spello PG 17 8645 82202
Visso MC 17 1107 83309
Pieve Torina MC 18 1458 84767
Montefalco PG 19 5679 90446
Vallo di Nera PG 20 364 90810
Nocera Umbra PG 20 5839 96649

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
47 Km NE of Terni (111501 inhabitants)
75 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
99 Km SE of Arezzo (99543 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 2.3 1998-02-15
02:34:52
42.945 12.876 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 323119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-02-15 02:34:52 ± 0.185
Latitude 42.9450 ± 0.0121
Longitude 12.8760 ± 0.0173
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 323119

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) 1952.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
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) 0.00518
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 323119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:02:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-02-15T02:35:13.91 10.0 undecidable manual SG 194 0.5772 1.04 0
--.SNTG.Z. 1998-02-15T02:35:04.41 10.0 undecidable manual SG 8 0.3108 0.02 0.8
--.MNS.Z. 1998-02-15T02:35:03.55 10.0 undecidable manual PG 194 0.5772 -0.67 0.3
--.NRCA.Z. 1998-02-15T02:35:01.23 10.0 undecidable manual SG 122 0.1998 0.29 0.7
--.ASS.Z. 1998-02-15T02:35:00.67 10.0 undecidable manual SG 305 0.1998 -0.12 0.7
--.SNTG.Z. 1998-02-15T02:34:59.29 10.0 undecidable manual PG 8 0.3108 -0.03 1.9
--.ASS.Z. 1998-02-15T02:34:57.44 10.0 undecidable manual PG 305 0.1998 0.19 1.8
--.NRCA.Z. 1998-02-15T02:34:57.28 10.0 undecidable manual PG 122 0.1998 -0.06 1.9
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