Earthquake with magnitude of Md 2.0 on date 03-04-1998 and time 10:12:33 (Italy) in region 5 km W Nocera Umbra (PG)

A magnitude Md 2.0 earthquake occured in region: 5 km W Nocera Umbra (PG), on

  • 03-04-1998 08:12:33 (UTC)
  • 03-04-1998 10:12:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1300, 12.7290 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
Nocera Umbra PG 5 5839 5839
Valtopina PG 8 1398 7237
Valfabbrica PG 11 3389 10626
Assisi PG 11 28299 38925
Gualdo Tadino PG 12 15208 54133
Spello PG 16 8645 62778
Bastia Umbra PG 16 21874 84652
Fiuminata MC 18 1402 86054
Sefro MC 18 422 86476
Fossato di Vico PG 19 2840 89316
Cannara PG 19 4305 93621
Serravalle di Chienti MC 19 1070 94691
Foligno PG 19 57155 151846

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Foligno (57155 inhabitants)
28 Km E of Perugia (166134 inhabitants)
64 Km N of Terni (111501 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
83 Km S of Fano (60888 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
95 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 2.0 1998-04-03
08:12:33
43.13 12.729 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 329859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-04-03 08:12:33 ± 0.166
Latitude 43.1300 ± 0.0103
Longitude 12.7290 ± 0.0190
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 329859

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) 1924.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00502
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 329859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:09:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1998-04-03T08:12:53.60 10.0 undecidable manual SG 3 0.555 0.1 0.6
--.ARV.Z. 1998-04-03T08:12:47.88 10.0 undecidable manual SG 22 0.3996 -0.4 0.5
--.FB9.Z. 1998-04-03T08:12:44.45 10.0 undecidable manual PG 3 0.555 -0.5 0.8
--.ARV.Z. 1998-04-03T08:12:43.90 10.0 undecidable manual PG 22 0.3996 1.15 0.2
--.NRCA.Z. 1998-04-03T08:12:41.99 10.0 undecidable manual PG 136 0.3996 -0.08 1.8
--.SNTG.Z. 1998-04-03T08:12:41.40 10.0 undecidable manual SG 50 0.1998 -0.1 0.6
--.ASS.Z. 1998-04-03T08:12:38.20 10.0 undecidable manual SG 219 0.0777 0.22 0.8
--.SNTG.Z. 1998-04-03T08:12:38.70 10.0 undecidable manual PG 50 0.1998 0.05 1.9
--.ASS.Z. 1998-04-03T08:12:35.81 10.0 undecidable manual PG 219 0.0777 -0.08 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download