Earthquake with magnitude of Md 4.7 on date 03-04-1998 and time 09:26:36 (Italy) in region 6 km S Gualdo Tadino (PG)

A magnitude Md 4.7 earthquake occured in region: 6 km S Gualdo Tadino (PG), on

  • 03-04-1998 07:26:36 (UTC)
  • 03-04-1998 09:26:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.18, 12.79 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
Gualdo Tadino PG 6 15208 15208
Nocera Umbra PG 7 5839 21047
Fiuminata MC 12 1402 22449
Valtopina PG 13 1398 23847
Fossato di Vico PG 13 2840 26687
Sefro MC 14 422 27109
Valfabbrica PG 15 3389 30498
Esanatoglia MC 16 2034 32532
Pioraco MC 16 1134 33666
Sigillo PG 18 2404 36070
Serravalle di Chienti MC 18 1070 37140
Assisi PG 18 28299 65439

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km N of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
69 Km N of Terni (111501 inhabitants)
77 Km S of Fano (60888 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
80 Km E of Arezzo (99543 inhabitants)
82 Km S of Pesaro (94582 inhabitants)
94 Km NW of Teramo (54892 inhabitants)
100 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 4.7
ML-MEDNET 4.9
1998-04-03
07:26:36
43.18 12.79 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 329689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-04-03 07:26:36 ± 0.125
Latitude 43.18 ± 0.01
Longitude 12.79 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 329689

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) 1286.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.01627
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

Md:4.7

Field Value
Value 4.7
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 329689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:09:00

ML:4.9

Field Value
Value 4.9
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 329689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 10:37:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BDI.Z. 1998-04-03T07:27:07.19 10.0 undecidable manual PN 299 0.0163 -0.3 0.6
--.SDI.Z. 1998-04-03T07:27:06.10 10.0 undecidable manual PN 152 0.0148 0.86 0.1
--.PII.Z. 1998-04-03T07:27:06.70 10.0 undecidable manual PN 289 0.0155 -0.25 0.7
--.RMP.Z. 1998-04-03T07:27:02.25 10.0 undecidable manual PN 182 0.0122 0.91 0.1
--.BS9.Z. 1998-04-03T07:27:00.48 10.0 undecidable manual PN 335 0.0109 1.16 0
--.GRFL.Z. 1998-04-03T07:27:00.79 10.0 undecidable manual PN 269 0.0118 0.09 0.9
--.PQ9.Z. 1998-04-03T07:26:59.42 10.0 undecidable manual PN 158 0.0111 -0.19 0.9
--.CSNT.Z. 1998-04-03T07:26:58.17 10.0 negative manual PN 285 0.0101 0.13 2
--.SFI.Z. 1998-04-03T07:26:55.61 10.0 undecidable manual PG 317 0.0089 -0.45 0.6
--.AQU.Z. 1998-04-03T07:26:54.63 10.0 positive manual PG 150 0.0084 -0.39 1.5
--.RSM.Z. 1998-04-03T07:26:52.60 10.0 undecidable manual PG 342 0.007 0.35 0.9
--.MNS.Z. 1998-04-03T07:26:51.84 10.0 positive manual PG 185 0.0071 -0.53 1.1
--.CRE.Z. 1998-04-03T07:26:51.26 10.0 undecidable manual PG 306 0.0067 -0.27 1
--.ARV.Z. 1998-04-03T07:26:49.22 10.0 undecidable manual SG 19 0.003 -0.21 0.4
--.FB9.Z. 1998-04-03T07:26:46.77 10.0 undecidable manual PG 359 0.0046 -0.4 0.8
--.NRCA.Z. 1998-04-03T07:26:45.42 10.0 positive manual PG 144 0.0037 0.04 2.4
--.ARV.Z. 1998-04-03T07:26:43.72 10.0 positive manual PG 19 0.003 -0.23 2.1
--.ASS.Z. 1998-04-03T07:26:43.63 10.0 undecidable manual SG 220 0.0013 0.47 0.3
--.SNTG.Z. 1998-04-03T07:26:42.34 10.0 undecidable manual SG 55 0.0012 -0.38 0.3
--.ASS.Z. 1998-04-03T07:26:40.31 10.0 positive manual PG 220 0.0013 -0.03 2.4
--.SNTG.Z. 1998-04-03T07:26:40.35 10.0 positive manual PG 55 0.0012 0.27 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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