Earthquake with magnitude of Md 2.2 on date 19-04-1998 and time 19:05:53 (Italy) in region 3 km E Valtopina (PG)

A magnitude Md 2.2 earthquake occured in region: 3 km E Valtopina (PG), on

  • 19-04-1998 17:05:53 (UTC)
  • 19-04-1998 19:05:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0710, 12.7830 at 18 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 3 1398 1398
Nocera Umbra PG 5 5839 7237
Spello PG 13 8645 15882
Assisi PG 14 28299 44181
Serravalle di Chienti MC 14 1070 45251
Foligno PG 14 57155 102406
Sefro MC 16 422 102828
Valfabbrica PG 18 3389 106217
Gualdo Tadino PG 18 15208 121425
Fiuminata MC 18 1402 122827
Cannara PG 18 4305 127132
Bastia Umbra PG 19 21874 149006
Monte Cavallo MC 20 145 149151

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NE of Foligno (57155 inhabitants)
32 Km E of Perugia (166134 inhabitants)
58 Km N of Terni (111501 inhabitants)
85 Km SE of Arezzo (99543 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
88 Km NW of Teramo (54892 inhabitants)
88 Km S of Fano (60888 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
94 Km S of Pesaro (94582 inhabitants)
95 Km NW of L'Aquila (69753 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
ML-VAX 1.5
1998-04-19
17:05:53
43.071 12.783 18 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 335499
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-04-19 17:05:53 ± 0.21
Latitude 43.0710 ± 0.0062
Longitude 12.7830 ± 0.0167
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 335499

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) 1521.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00615
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 335499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:14:16

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 335499
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. 1998-04-19T17:06:18.13 10.0 undecidable manual SG 186 0.6882 0.75 0
--.FB9.Z. 1998-04-19T17:06:15.60 10.0 undecidable manual SG 359 0.6216 -0.09 0.5
--.ARV.Z. 1998-04-19T17:06:09.76 10.0 undecidable manual SG 15 0.444 0.22 0.4
--.MNS.Z. 1998-04-19T17:06:07.00 10.0 undecidable manual PG 186 0.6882 -0.14 1
--.NRCA.Z. 1998-04-19T17:06:06.40 10.0 undecidable manual SG 134 0.333 -0.28 0.3
--.FB9.Z. 1998-04-19T17:06:05.94 10.0 undecidable manual PG 359 0.6216 0.09 1.2
--.SNTG.Z. 1998-04-19T17:06:03.37 10.0 undecidable manual SG 31 0.2109 0.66 0
--.ARV.Z. 1998-04-19T17:06:02.54 10.0 undecidable manual PG 15 0.444 -0.08 1.5
--.NRCA.Z. 1998-04-19T17:06:00.70 10.0 undecidable manual PG 134 0.333 -0.05 1.6
--.ASS.Z. 1998-04-19T17:05:59.71 10.0 undecidable manual SG 264 0.0888 -0.11 0.6
--.SNTG.Z. 1998-04-19T17:05:58.57 10.0 positive manual PG 31 0.2109 -0.1 3.1
--.ASS.Z. 1998-04-19T17:05:56.92 10.0 undecidable manual PG 264 0.0888 -0.08 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download