Earthquake with magnitude of Md 2.2 on date 30-06-1998 and time 02:25:33 (Italy) in region 6 km SE Valtopina (PG)

A magnitude Md 2.2 earthquake occured in region: 6 km SE Valtopina (PG), on

  • 30-06-1998 00:25:33 (UTC)
  • 30-06-1998 02:25:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0150, 12.7900 at 17 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 6 1398 1398
Foligno PG 10 57155 58553
Spello PG 10 8645 67198
Nocera Umbra PG 11 5839 73037
Serravalle di Chienti MC 15 1070 74107
Assisi PG 16 28299 102406
Trevi PG 16 8469 110875
Cannara PG 17 4305 115180
Bevagna PG 17 5081 120261
Montefalco PG 17 5679 125940
Monte Cavallo MC 17 145 126085
Sellano PG 18 1079 127164
Sefro MC 20 422 127586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
52 Km N of Terni (111501 inhabitants)
84 Km W of Teramo (54892 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
89 Km SE of Arezzo (99543 inhabitants)
89 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 inhabitants)
100 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 2.2 1998-06-30
00:25:33
43.015 12.79 17 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 344539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-06-30 00:25:33 ± 0.129
Latitude 43.0150 ± 0.0033
Longitude 12.7900 ± 0.0067
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 344539

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) 656.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00567
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 344539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:22:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-06-30T00:25:55.74 10.0 undecidable manual SG 187 0.6327 0.07 0.6
--.MNS.Z. 1998-06-30T00:25:46.40 10.0 undecidable manual PG 187 0.6327 -0.15 0.8
--.NRCA.Z. 1998-06-30T00:25:45.70 10.0 undecidable manual SG 127 0.2997 0 0.9
--.SNTG.Z. 1998-06-30T00:25:43.83 10.0 undecidable manual SG 24 0.2553 -0.19 0.4
--.NRCA.Z. 1998-06-30T00:25:40.13 10.0 undecidable manual PG 127 0.2997 0.06 2.1
--.SNTG.Z. 1998-06-30T00:25:39.49 10.0 undecidable manual PG 24 0.2553 0.03 2.2
--.ASS.Z. 1998-06-30T00:25:39.74 10.0 undecidable manual SG 294 0.111 -0.24 0.2
--.ASS.Z. 1998-06-30T00:25:37.33 10.0 undecidable manual PG 294 0.111 0.2 0.8
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