Earthquake with magnitude of Md 2.1 on date 14-11-1998 and time 05:02:32 (Italy) in region 6 km E Norcia (PG)

A magnitude Md 2.1 earthquake occured in region: 6 km E Norcia (PG), on

  • 14-11-1998 04:02:32 (UTC)
  • 14-11-1998 05:02:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7890, 13.1670 at 12 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
Norcia PG 6 4957 4957
Arquata del Tronto AP 11 1178 6135
Castelsantangelo sul Nera MC 12 281 6416
Accumoli RI 12 667 7083
Preci PG 15 724 7807
Cascia PG 15 3217 11024
Montegallo AP 15 523 11547
Visso MC 17 1107 12654
Ussita MC 18 444 13098
Montemonaco AP 18 604 13702
Cittareale RI 19 482 14184

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
93 Km W of Pescara (121014 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 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 2.1 1998-11-14
04:02:32
42.789 13.167 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 354839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-11-14 04:02:32 ± 0.333
Latitude 42.7890 ± 0.0083
Longitude 13.1670 ± 0.0273
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 354839

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) 2414.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 241
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.00486
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 354839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:32:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-11-14T04:02:52.26 10.0 undecidable manual SG 221 0.5439 0.01 0.7
--.SNTG.Z. 1998-11-14T04:02:50.33 10.0 undecidable manual SG 340 0.4884 -0.42 0.2
--.ASS.Z. 1998-11-14T04:02:49.97 10.0 undecidable manual SG 306 0.4551 0.11 0.7
--.MNS.Z. 1998-11-14T04:02:43.82 10.0 undecidable manual PG 221 0.5439 -0.29 1
--.ASS.Z. 1998-11-14T04:02:43.80 10.0 undecidable manual PG 306 0.4551 0.35 0.8
--.SNTG.Z. 1998-11-14T04:02:43.60 10.0 undecidable manual PG 340 0.4884 -0.18 1.4
--.NRCA.Z. 1998-11-14T04:02:37.11 10.0 undecidable manual SG 317 0.0555 -0.52 0.1
--.NRCA.Z. 1998-11-14T04:02:35.86 10.0 negative manual PG 317 0.0555 0.19 3.1
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