Earthquake with magnitude of Md 2.3 on date 13-01-1998 and time 06:08:23 (UTC) in region 6 km E Umbertide (PG)

A magnitude Md 2.3 earthquake occured in region: 6 km E Umbertide (PG), on

  • 13-01-1998 06:08:23 (UTC)
  • 13-01-1998 07:08:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3250, 12.3930 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
Umbertide PG 6 16681 16681
Montone PG 7 1680 18361
Pietralunga PG 14 2111 20472
Gubbio PG 16 32216 52688
Città di Castello PG 19 39913 92601

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Perugia (166134 inhabitants)
44 Km E of Arezzo (99543 inhabitants)
48 Km NW of Foligno (57155 inhabitants)
77 Km SW of Fano (60888 inhabitants)
78 Km SW of Pesaro (94582 inhabitants)
83 Km S of Rimini (147750 inhabitants)
86 Km E of Siena (53903 inhabitants)
87 Km N of Terni (111501 inhabitants)
91 Km S of Cesena (96758 inhabitants)
97 Km W of Ancona (100861 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 2.3 1998-01-13
06:08:23
43.325 12.393 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 320549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-01-13 06:08:23 ± 0.23
Latitude 43.3250 ± 0.0121
Longitude 12.3930 ± 0.0223
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 320549

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) 2253.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00639
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 320549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:00:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1998-01-13T06:08:40.77 10.0 undecidable manual SG 37 0.4551 0.18 0.7
--.NRCA.Z. 1998-01-13T06:08:38.11 10.0 undecidable manual PG 132 0.7104 -0.19 1.3
--.SNTG.Z. 1998-01-13T06:08:37.66 10.0 undecidable manual SG 99 0.3996 -1.1 0
--.ASS.Z. 1998-01-13T06:08:35.75 10.0 undecidable manual SG 144 0.3108 -0.4 0.5
--.SNTG.Z. 1998-01-13T06:08:33.20 10.0 undecidable manual PG 99 0.3996 0.55 0.8
--.FB9.Z. 1998-01-13T06:08:33.54 10.0 undecidable manual PG 37 0.4551 0.02 1.9
--.CRE.Z. 1998-01-13T06:08:32.79 10.0 undecidable manual PG 312 0.4329 -0.26 1.6
--.ASS.Z. 1998-01-13T06:08:31.37 10.0 undecidable manual PG 144 0.3108 0.41 1.2
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