Earthquake with magnitude of Md 2.0 on date 15-09-1998 and time 17:45:40 (UTC) in region 5 km W Gualdo Tadino (PG)

A magnitude Md 2.0 earthquake occured in region: 5 km W Gualdo Tadino (PG), on

  • 15-09-1998 17:45:40 (UTC)
  • 15-09-1998 19:45:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2140, 12.7250 at 15 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
Gualdo Tadino PG 5 15208 15208
Fossato di Vico PG 10 2840 18048
Valfabbrica PG 12 3389 21437
Nocera Umbra PG 13 5839 27276
Sigillo PG 13 2404 29680
Costacciaro PG 16 1216 30896
Fiuminata MC 17 1402 32298
Valtopina PG 17 1398 33696
Assisi PG 18 28299 61995
Esanatoglia MC 19 2034 64029
Gubbio PG 20 32216 96245
Sefro MC 20 422 96667

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Foligno (57155 inhabitants)
30 Km E of Perugia (166134 inhabitants)
73 Km N of Terni (111501 inhabitants)
74 Km E of Arezzo (99543 inhabitants)
74 Km SW of Fano (60888 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
79 Km S of Pesaro (94582 inhabitants)
95 Km S of Rimini (147750 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 1998-09-15
17:45:40
43.214 12.725 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 351079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-09-15 17:45:40 ± 0.108
Latitude 43.2140 ± 0.0031
Longitude 12.7250 ± 0.0077
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 351079

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) 713.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00429
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 5
Type of magnitude Md
Reference to an origin 351079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:28:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1998-09-15T17:45:58.20 10.0 undecidable manual SG 4 0.4773 0.26 0.1
--.NRCA.Z. 1998-09-15T17:45:57.76 10.0 undecidable manual SG 143 0.4662 0 0.6
--.ARV.Z. 1998-09-15T17:45:52.95 10.0 undecidable manual SG 29 0.3219 -0.12 0.5
--.NRCA.Z. 1998-09-15T17:45:50.45 10.0 undecidable manual PG 143 0.4662 -0.04 1.5
--.FB9.Z. 1998-09-15T17:45:50.48 10.0 undecidable manual PG 4 0.4773 -0.11 1.1
--.ARV.Z. 1998-09-15T17:45:47.72 10.0 undecidable manual PG 29 0.3219 -0.06 1.7
--.ASS.Z. 1998-09-15T17:45:47.83 10.0 undecidable manual SG 199 0.1554 -0.23 0.2
--.SNTG.Z. 1998-09-15T17:45:47.94 10.0 undecidable manual SG 75 0.1665 -0.17 0.3
--.SNTG.Z. 1998-09-15T17:45:45.14 10.0 undecidable manual PG 75 0.1665 0.22 0.5
--.ASS.Z. 1998-09-15T17:45:44.95 10.0 positive manual PG 199 0.1554 0.06 3.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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