Earthquake with magnitude of Md 4.2 on date 02-06-1998 and time 23:11:22 (UTC) in region 7 km NE Nocera Umbra (PG)

A magnitude Md 4.2 earthquake occured in region: 7 km NE Nocera Umbra (PG), on

  • 02-06-1998 23:11:22 (UTC)
  • 03-06-1998 01:11:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.17, 12.82 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
Nocera Umbra PG 7 5839 5839
Gualdo Tadino PG 7 15208 21047
Fiuminata MC 10 1402 22449
Sefro MC 11 422 22871
Valtopina PG 13 1398 24269
Pioraco MC 14 1134 25403
Esanatoglia MC 14 2034 27437
Fossato di Vico PG 15 2840 30277
Serravalle di Chienti MC 15 1070 31347
Valfabbrica PG 18 3389 34736
Matelica MC 19 9981 44717
Sigillo PG 19 2404 47121
Assisi PG 20 28299 75420
Fabriano AN 20 31480 106900

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
69 Km N of Terni (111501 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
77 Km S of Fano (60888 inhabitants)
83 Km E of Arezzo (99543 inhabitants)
83 Km S of Pesaro (94582 inhabitants)
92 Km NW of Teramo (54892 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 4.2
ML-MEDNET 4.1
1998-06-02
23:11:22
43.17 12.82 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 340779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-06-02 23:11:22 ± 0.137
Latitude 43.17 ± 0.01
Longitude 12.82 ± 0.01
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 340779

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) 1445.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.03983
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:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 340779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:19:12

ML:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 340779
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
--.MCGN.Z. 1998-06-02T23:12:29.97 10.0 undecidable manual PN 310 0.0398 0.77 0.1
--.PII.Z. 1998-06-02T23:11:52.93 10.0 undecidable manual PN 289 0.0157 0.41 0.6
--.SDI.Z. 1998-06-02T23:11:51.95 10.0 undecidable manual PN 153 0.0147 1.09 0.1
--.BS9.Z. 1998-06-02T23:11:48.39 10.0 undecidable manual PN! 334 0.0111 2.98 0
--.CRE.Z. 1998-06-02T23:11:48.89 10.0 undecidable manual SG 305 0.007 -0.27 0.4
--.GRFL.Z. 1998-06-02T23:11:47.17 10.0 undecidable manual PN 269 0.0121 0.29 0.9
--.RMP.Z. 1998-06-02T23:11:47.79 10.0 undecidable manual PN 183 0.0122 0.66 0.4
--.PQ9.Z. 1998-06-02T23:11:44.91 10.0 negative manual PN 159 0.011 -0.35 1.6
--.CSNT.Z. 1998-06-02T23:11:44.30 10.0 undecidable manual PN 285 0.0103 0.05 1.1
--.SFI.Z. 1998-06-02T23:11:41.71 10.0 undecidable manual PG 316 0.0091 -0.59 0.5
--.AQU.Z. 1998-06-02T23:11:40.00 10.0 negative manual PG 152 0.0083 -0.55 1.1
--.RSM.Z. 1998-06-02T23:11:38.77 10.0 undecidable manual PG 340 0.0072 0.4 0.8
--.CRE.Z. 1998-06-02T23:11:37.38 10.0 undecidable manual PG 305 0.007 -0.43 0.8
--.MNS.Z. 1998-06-02T23:11:37.67 10.0 negative manual PG 187 0.007 -0.46 1.4
--.FB9.Z. 1998-06-02T23:11:32.83 10.0 positive manual PG 356 0.0047 -0.34 1.8
--.NRCA.Z. 1998-06-02T23:11:31.16 10.0 negative manual PG 147 0.0036 0.27 2
--.ARV.Z. 1998-06-02T23:11:29.57 10.0 undecidable manual PG 15 0.0031 -0.24 1
--.ASS.Z. 1998-06-02T23:11:26.42 10.0 positive manual PG 228 0.0014 0.06 2.3
--.SNTG.Z. 1998-06-02T23:11:25.84 10.0 positive manual PG 46 0.0011 0.2 2.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download