Earthquake with magnitude of Md 2.5 on date 10-01-1998 and time 01:03:12 (Italy) in region 4 km E Valtopina (PG)

A magnitude Md 2.5 earthquake occured in region: 4 km E Valtopina (PG), on

  • 10-01-1998 00:03:12 (UTC)
  • 10-01-1998 01:03:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0480, 12.7980 at 16 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
Valtopina PG 4 1398 1398
Nocera Umbra PG 7 5839 7237
Spello PG 12 8645 15882
Foligno PG 13 57155 73037
Serravalle di Chienti MC 13 1070 74107
Assisi PG 15 28299 102406
Sefro MC 17 422 102828
Monte Cavallo MC 18 145 102973
Cannara PG 18 4305 107278
Fiuminata MC 19 1402 108680
Trevi PG 19 8469 117149
Bevagna PG 20 5081 122230

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
55 Km N of Terni (111501 inhabitants)
86 Km NW of Teramo (54892 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
90 Km S of Fano (60888 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
96 Km S of Pesaro (94582 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 2.5
ML-VAX 1.6
1998-01-10
00:03:12
43.048 12.798 16 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 319709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-01-10 00:03:12 ± 0.158
Latitude 43.0480 ± 0.0050
Longitude 12.7980 ± 0.0125
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 319709

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) 1158.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00599
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 319709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:59:45

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 319709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-01-10T00:03:35.81 10.0 undecidable manual SG 187 0.666 0.03 0.6
--.FB9.Z. 1998-01-10T00:03:34.72 10.0 undecidable manual SG 358 0.6327 -0.32 0.2
--.FB9.Z. 1998-01-10T00:03:25.41 10.0 undecidable manual PG 358 0.6327 -0.04 1.5
--.MNS.Z. 1998-01-10T00:03:25.69 10.0 undecidable manual PG 187 0.666 -0.19 1.1
--.NRCA.Z. 1998-01-10T00:03:24.26 10.0 undecidable manual SG 132 0.3108 -0.32 0.3
--.SNTG.Z. 1998-01-10T00:03:21.79 10.0 undecidable manual SG 26 0.222 -0.26 0.4
--.NRCA.Z. 1998-01-10T00:03:19.50 10.0 negative manual PG 132 0.3108 0.09 3.8
--.ASS.Z. 1998-01-10T00:03:18.34 10.0 undecidable manual SG 277 0.0999 -0.43 0.1
--.SNTG.Z. 1998-01-10T00:03:18.21 10.0 undecidable manual PG 26 0.222 0.26 1.1
--.ASS.Z. 1998-01-10T00:03:16.39 10.0 undecidable manual PG 277 0.0999 0.33 0.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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