Earthquake with magnitude of Md 2.0 on date 27-09-1997 and time 05:24:36 (UTC) in region 4 km NE Nocera Umbra (PG)

A magnitude Md 2.0 earthquake occured in region: 4 km NE Nocera Umbra (PG), on

  • 27-09-1997 05:24:36 (UTC)
  • 27-09-1997 07:24:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1340, 12.8250 at 6 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
Nocera Umbra PG 4 5839 5839
Valtopina PG 10 1398 7237
Sefro MC 10 422 7659
Fiuminata MC 11 1402 9061
Gualdo Tadino PG 11 15208 24269
Serravalle di Chienti MC 12 1070 25339
Pioraco MC 14 1134 26473
Esanatoglia MC 17 2034 28507
Assisi PG 18 28299 56806
Valfabbrica PG 18 3389 60195
Fossato di Vico PG 19 2840 63035
Muccia MC 19 915 63950
Camerino MC 20 6974 70924
Spello PG 20 8645 79569

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
65 Km N of Terni (111501 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
81 Km S of Fano (60888 inhabitants)
85 Km E of Arezzo (99543 inhabitants)
87 Km S of Pesaro (94582 inhabitants)
89 Km NW of Teramo (54892 inhabitants)
99 Km NW of L'Aquila (69753 inhabitants)
99 Km NE of Viterbo (67173 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 1.9
1997-09-27
05:24:36
43.134 12.825 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 281269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-27 05:24:36 ± 0.378
Latitude 43.1340 ± 0.0179
Longitude 12.8250 ± 0.0334
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 281269

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) 3365.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 227
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00712
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 2
Type of magnitude Md
Reference to an origin 281269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:25:28

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 281269
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
--.CRE.Z. 1997-09-27T05:25:05.54 10.0 undecidable manual SG 307 0.7881 0.51 0.1
--.FB9.Z. 1997-09-27T05:24:57.33 10.0 undecidable manual SG 356 0.555 0.02 0.7
--.CRE.Z. 1997-09-27T05:24:52.81 10.0 undecidable manual PG 307 0.7881 -0.28 0.7
--.ARV.Z. 1997-09-27T05:24:51.30 10.0 undecidable manual SG 13 0.3663 -0.09 0.7
--.FB9.Z. 1997-09-27T05:24:48.35 10.0 undecidable manual PG 356 0.555 -0.29 0.9
--.ARV.Z. 1997-09-27T05:24:45.54 10.0 undecidable manual PG 13 0.3663 0.33 0.8
--.ASS.Z. 1997-09-27T05:24:42.58 10.0 undecidable manual SG 240 0.1443 -0.22 0.5
--.ASS.Z. 1997-09-27T05:24:40.35 10.0 positive manual PG 240 0.1443 0.09 3.6
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