Earthquake with magnitude of Md 4.0 on date 03-04-1998 and time 07:59:52 (UTC) in region 5 km S Gualdo Tadino (PG)

A magnitude Md 4.0 earthquake occured in region: 5 km S Gualdo Tadino (PG), on

  • 03-04-1998 07:59:52 (UTC)
  • 03-04-1998 09:59:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.189, 12.774 at 9 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
Nocera Umbra PG 9 5839 21047
Fossato di Vico PG 12 2840 23887
Fiuminata MC 13 1402 25289
Valfabbrica PG 14 3389 28678
Valtopina PG 14 1398 30076
Sefro MC 15 422 30498
Esanatoglia MC 16 2034 32532
Sigillo PG 16 2404 34936
Pioraco MC 17 1134 36070
Assisi PG 18 28299 64369
Serravalle di Chienti MC 19 1070 65439
Fabriano AN 20 31480 96919
Costacciaro PG 20 1216 98135

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
71 Km N of Terni (111501 inhabitants)
76 Km S of Fano (60888 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
96 Km NW of Teramo (54892 inhabitants)
99 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 4.0 1998-04-03
07:59:52
43.189 12.774 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 329819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-04-03 07:59:52 ± 0.144
Latitude 43.1890 ± 0.0085
Longitude 12.7740 ± 0.0154
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 329819

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) 1563
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.01757
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 329819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:09:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.GU9.Z. 1998-04-03T08:00:26.45 10.0 undecidable manual PN 307 0.0176 1.03 0.1
--.BDI.Z. 1998-04-03T08:00:23.22 10.0 undecidable manual PN 299 0.0162 -0.02 0.9
--.SDI.Z. 1998-04-03T08:00:22.14 10.0 undecidable manual PN 152 0.015 0.76 0.3
--.RMP.Z. 1998-04-03T08:00:18.47 10.0 undecidable manual PN 182 0.0124 1.02 0.2
--.GRFL.Z. 1998-04-03T08:00:16.77 10.0 undecidable manual PN 268 0.0117 0.24 1
--.PQ9.Z. 1998-04-03T08:00:15.72 10.0 undecidable manual PN 158 0.0113 -0.02 1.1
--.CSNT.Z. 1998-04-03T08:00:14.37 10.0 undecidable manual PN 285 0.01 0.54 0.7
--.SFI.Z. 1998-04-03T08:00:11.80 10.0 undecidable manual PG 317 0.0088 -0.63 0.6
--.AQU.Z. 1998-04-03T08:00:10.54 10.0 undecidable manual PG 151 0.0086 -0.67 0.6
--.RSM.Z. 1998-04-03T08:00:08.32 10.0 undecidable manual PG 342 0.007 0.41 1
--.NRCA.Z. 1998-04-03T08:00:08.84 10.0 undecidable manual SG 145 0.0039 0.51 0.3
--.MNS.Z. 1998-04-03T08:00:07.71 10.0 positive manual PG 185 0.0072 -0.78 0.9
--.CRE.Z. 1998-04-03T08:00:06.76 10.0 undecidable manual PG 306 0.0066 -0.43 1
--.ARV.Z. 1998-04-03T08:00:05.26 10.0 undecidable manual SG 21 0.003 0.15 0.5
--.FB9.Z. 1998-04-03T08:00:02.44 10.0 positive manual PG 0 0.0045 -0.42 2
--.NRCA.Z. 1998-04-03T08:00:01.27 10.0 undecidable manual PG 145 0.0039 -0.3 1.2
--.ASS.Z. 1998-04-03T07:59:59.70 10.0 undecidable manual SG 215 0.0014 0.6 0.3
--.ARV.Z. 1998-04-03T07:59:59.46 10.0 positive manual PG 21 0.003 -0.26 2.5
--.SNTG.Z. 1998-04-03T07:59:59.46 10.0 undecidable manual SG 61 0.0012 0.93 0.1
--.SNTG.Z. 1998-04-03T07:59:56.10 10.0 positive manual PG 61 0.0012 0.09 2.7
--.ASS.Z. 1998-04-03T07:59:56.19 10.0 positive manual PG 215 0.0014 -0.06 2.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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