Earthquake with magnitude of Md 2.4 on date 13-12-1997 and time 05:45:43 (Italy) in region 4 km NW Sellano (PG)

A magnitude Md 2.4 earthquake occured in region: 4 km NW Sellano (PG), on

  • 13-12-1997 04:45:43 (UTC)
  • 13-12-1997 05:45:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9120, 12.8950 at 20 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
Sellano PG 4 1079 1079
Cerreto di Spoleto PG 10 1075 2154
Preci PG 12 724 2878
Trevi PG 13 8469 11347
Monte Cavallo MC 13 145 11492
Campello sul Clitunno PG 14 2442 13934
Visso MC 16 1107 15041
Vallo di Nera PG 16 364 15405
Foligno PG 16 57155 72560
Serravalle di Chienti MC 19 1070 73630
Pieve Torina MC 20 1458 75088
Montefalco PG 20 5679 80767
Valtopina PG 20 1398 82165

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
47 Km E of Perugia (166134 inhabitants)
72 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
85 Km NE of Viterbo (67173 inhabitants)
93 Km SW 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 2.4
ML-VAX 1.7
1997-12-13
04:45:43
42.912 12.895 19 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 316849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-12-13 04:45:43 ± 0.463
Latitude 42.9120 ± 0.0163
Longitude 12.8950 ± 0.0232
Depth (km) 19 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 316849

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) 2617.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00704
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 316849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:57:05

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 316849
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
--.FB9.Z. 1997-12-13T04:46:10.97 10.0 undecidable manual SG 353 0.777 0.67 0.1
--.ARV.Z. 1997-12-13T04:46:04.38 10.0 undecidable manual SG 3 0.5883 0.34 0.5
--.FB9.Z. 1997-12-13T04:45:58.89 10.0 undecidable manual PG 353 0.777 0.12 1.5
--.SNTG.Z. 1997-12-13T04:45:56.24 10.0 undecidable manual SG 5 0.3441 -0.25 0.7
--.ARV.Z. 1997-12-13T04:45:55.00 10.0 undecidable manual PG 3 0.5883 -0.15 1.7
--.ASS.Z. 1997-12-13T04:45:53.16 10.0 undecidable manual SG 310 0.222 -0.09 0.9
--.NRCA.Z. 1997-12-13T04:45:52.73 10.0 undecidable manual SG 116 0.1665 0.93 0
--.SNTG.Z. 1997-12-13T04:45:50.40 10.0 undecidable manual PG 5 0.3441 -0.39 1.3
--.ASS.Z. 1997-12-13T04:45:49.10 10.0 undecidable manual PG 310 0.222 0.09 2.2
--.NRCA.Z. 1997-12-13T04:45:47.63 10.0 undecidable manual PG 116 0.1665 -0.46 1.1
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