Earthquake with magnitude of Md 3.4 on date 28-05-1998 and time 03:01:51 (UTC) in region 5 km S Gualdo Tadino (PG)

A magnitude Md 3.4 earthquake occured in region: 5 km S Gualdo Tadino (PG), on

  • 28-05-1998 03:01:51 (UTC)
  • 28-05-1998 05:01:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.185, 12.798 at 4 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 8 5839 21047
Fiuminata MC 11 1402 22449
Fossato di Vico PG 13 2840 25289
Sefro MC 13 422 25711
Esanatoglia MC 14 2034 27745
Valtopina PG 14 1398 29143
Pioraco MC 15 1134 30277
Valfabbrica PG 16 3389 33666
Sigillo PG 17 2404 36070
Serravalle di Chienti MC 18 1070 37140
Fabriano AN 19 31480 68620
Matelica MC 19 9981 78601
Assisi PG 19 28299 106900

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
70 Km N of Terni (111501 inhabitants)
76 Km S of Fano (60888 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
80 Km E of Arezzo (99543 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
94 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 3.4
ML-VAX 2.1
1998-05-28
03:01:51
43.185 12.798 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 339909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-05-28 03:01:51 ± 0.174
Latitude 43.1850 ± 0.0084
Longitude 12.7980 ± 0.0183
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 339909

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) 1749.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.01554
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 339909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:18:23

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 339909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PII.Z. 1998-05-28T03:02:24.00 10.0 undecidable manual PN 288 0.0155 1.57 0.1
--.SDI.Z. 1998-05-28T03:02:23.20 10.0 undecidable manual PN 152 0.0148 1.71 0.1
--.MNS.Z. 1998-05-28T03:02:19.77 10.0 undecidable manual SG 186 0.0072 -0.71 0.2
--.GRFL.Z. 1998-05-28T03:02:17.16 10.0 undecidable manual PN 269 0.0119 0.3 1.1
--.RMP.Z. 1998-05-28T03:02:17.96 10.0 undecidable manual PN 183 0.0123 0.47 1
--.PQ9.Z. 1998-05-28T03:02:15.62 10.0 undecidable manual PN 159 0.0112 -0.07 1
--.CSNT.Z. 1998-05-28T03:02:13.99 10.0 undecidable manual PN 285 0.0101 -0.17 1
--.SFI.Z. 1998-05-28T03:02:11.35 10.0 undecidable manual PG 316 0.0089 -0.5 0.9
--.AQU.Z. 1998-05-28T03:02:11.26 10.0 undecidable manual PG 151 0.0084 0.41 1.3
--.FB9.Z. 1998-05-28T03:02:10.49 10.0 undecidable manual SG 358 0.0045 -0.46 0.4
--.RSM.Z. 1998-05-28T03:02:08.50 10.0 undecidable manual PG 341 0.007 0.1 1.5
--.NRCA.Z. 1998-05-28T03:02:07.50 10.0 undecidable manual SG 146 0.0037 -0.42 0.5
--.MNS.Z. 1998-05-28T03:02:07.70 10.0 undecidable manual PG 186 0.0072 -1.24 0.2
--.ARV.Z. 1998-05-28T03:02:04.46 10.0 undecidable manual SG 18 0.0029 -0.06 0.6
--.FB9.Z. 1998-05-28T03:02:02.10 10.0 undecidable manual PG 358 0.0045 -0.79 0.7
--.NRCA.Z. 1998-05-28T03:02:00.48 10.0 positive manual PG 146 0.0037 -0.57 2.3
--.ARV.Z. 1998-05-28T03:01:58.91 10.0 positive manual PG 18 0.0029 -0.18 3
--.ASS.Z. 1998-05-28T03:01:57.99 10.0 undecidable manual SG 221 0.0015 -0.1 0.5
--.SNTG.Z. 1998-05-28T03:01:56.89 10.0 undecidable manual SG 56 0.0011 0.17 0.6
--.SNTG.Z. 1998-05-28T03:01:55.33 10.0 positive manual PG 56 0.0011 0.74 1.6
--.ASS.Z. 1998-05-28T03:01:55.64 10.0 positive manual PG 221 0.0015 0.26 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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