Earthquake with magnitude of Md 2.0 on date 27-09-1997 and time 15:21:38 (Italy) in region 10 km NW Sellano (PG)

A magnitude Md 2.0 earthquake occured in region: 10 km NW Sellano (PG), on

  • 27-09-1997 13:21:38 (UTC)
  • 27-09-1997 15:21:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9680, 12.8760 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
Sellano PG 10 1079 1079
Monte Cavallo MC 11 145 1224
Serravalle di Chienti MC 13 1070 2294
Foligno PG 14 57155 59449
Valtopina PG 14 1398 60847
Trevi PG 14 8469 69316
Preci PG 17 724 70040
Pieve Torina MC 17 1458 71498
Cerreto di Spoleto PG 17 1075 72573
Spello PG 17 8645 81218
Nocera Umbra PG 17 5839 87057
Visso MC 18 1107 88164
Campello sul Clitunno PG 18 2442 90606
Muccia MC 19 915 91521
Fiordimonte MC 19 202 91723
Montefalco PG 20 5679 97402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
43 Km E of Perugia (166134 inhabitants)
49 Km NE of Terni (111501 inhabitants)
76 Km W of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
98 Km SE of Arezzo (99543 inhabitants)
98 Km S of Fano (60888 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 2.0
ML-VAX 1.6
1997-09-27
13:21:38
42.968 12.876 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 281789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-27 13:21:38 ± 0.32
Latitude 42.9680 ± 0.0129
Longitude 12.8760 ± 0.0339
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 281789

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) 3108.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00648
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 281789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:25:55

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 281789
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. 1997-09-27T13:22:05.13 10.0 undecidable manual SG 354 0.7215 1.41 0
--.MNS.Z. 1997-09-27T13:22:00.19 10.0 undecidable manual SG 193 0.5883 0.56 0.5
--.ARV.Z. 1997-09-27T13:21:57.13 10.0 undecidable manual SG 5 0.5328 -0.35 0.7
--.FB9.Z. 1997-09-27T13:21:53.22 10.0 undecidable manual PG 354 0.7215 0.18 1.7
--.MNS.Z. 1997-09-27T13:21:50.27 10.0 undecidable manual PG 193 0.5883 -0.41 1.5
--.ARV.Z. 1997-09-27T13:21:48.68 10.0 undecidable manual PG 5 0.5328 -0.76 0.8
--.ASS.Z. 1997-09-27T13:21:46.15 10.0 undecidable manual SG 299 0.1776 -0.27 0.7
--.ASS.Z. 1997-09-27T13:21:42.97 10.0 undecidable manual PG 299 0.1776 -0.09 2.1
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