Earthquake with magnitude of Md 2.0 on date 03-04-1998 and time 12:44:43 (Italy) in region 6 km S Gualdo Tadino (PG)

A magnitude Md 2.0 earthquake occured in region: 6 km S Gualdo Tadino (PG), on

  • 03-04-1998 10:44:43 (UTC)
  • 03-04-1998 12:44:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1790, 12.7840 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 6 15208 15208
Nocera Umbra PG 8 5839 21047
Fiuminata MC 12 1402 22449
Fossato di Vico PG 13 2840 25289
Valtopina PG 13 1398 26687
Sefro MC 14 422 27109
Valfabbrica PG 15 3389 30498
Esanatoglia MC 16 2034 32532
Pioraco MC 16 1134 33666
Sigillo PG 17 2404 36070
Assisi PG 18 28299 64369
Serravalle di Chienti MC 18 1070 65439

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
70 Km N of Terni (111501 inhabitants)
76 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)
95 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 2.0 1998-04-03
10:44:43
43.179 12.784 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 330129
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-04-03 10:44:43 ± 0.083
Latitude 43.1790 ± 0.0053
Longitude 12.7840 ± 0.0091
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 330129

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) 942.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
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) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.00461
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 2
Type of magnitude Md
Reference to an origin 330129
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:09:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1998-04-03T10:45:01.89 10.0 undecidable manual SG 359 0.5106 -0.09 0.5
--.NRCA.Z. 1998-04-03T10:44:59.35 10.0 undecidable manual SG 145 0.4107 0.33 0.2
--.ARV.Z. 1998-04-03T10:44:56.16 10.0 undecidable manual SG 19 0.333 -0.27 0.3
--.FB9.Z. 1998-04-03T10:44:54.58 10.0 undecidable manual PG 359 0.5106 0.42 0.2
--.NRCA.Z. 1998-04-03T10:44:52.28 10.0 undecidable manual PG 145 0.4107 -0.17 1.2
--.ARV.Z. 1998-04-03T10:44:50.70 10.0 undecidable manual PG 19 0.333 -0.26 0.9
--.ASS.Z. 1998-04-03T10:44:49.94 10.0 undecidable manual SG 219 0.1443 -0.2 0.5
--.SNTG.Z. 1998-04-03T10:44:49.60 10.0 undecidable manual SG 56 0.1332 -0.06 0.7
--.SNTG.Z. 1998-04-03T10:44:47.10 10.0 positive manual PG 56 0.1332 0.05 3.7
--.ASS.Z. 1998-04-03T10:44:47.36 10.0 undecidable manual PG 219 0.1443 0.03 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download