Earthquake with magnitude of Md 2.4 on date 28-09-1997 and time 19:06:01 (Italy) in region 6 km N Visso (MC)

A magnitude Md 2.4 earthquake occured in region: 6 km N Visso (MC), on

  • 28-09-1997 17:06:01 (UTC)
  • 28-09-1997 19:06:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9820, 13.0730 at 5 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
Visso MC 6 1107 1107
Monte Cavallo MC 6 145 1252
Fiordimonte MC 6 202 1454
Ussita MC 7 444 1898
Pieve Torina MC 7 1458 3356
Fiastra MC 9 559 3915
Pievebovigliana MC 9 866 4781
Acquacanina MC 10 121 4902
Muccia MC 12 915 5817
Preci PG 12 724 6541
Castelsantangelo sul Nera MC 12 281 6822
Bolognola MC 13 142 6964
Serravalle di Chienti MC 14 1070 8034
Sellano PG 16 1079 9113
Camerino MC 17 6974 16087
Sarnano MC 20 3264 19351

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
57 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
96 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 2.4
ML-VAX 1.8
1997-09-28
17:06:01
42.982 13.073 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 283489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-28 17:06:01 ± 0.384
Latitude 42.9820 ± 0.0124
Longitude 13.0730 ± 0.0320
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 283489

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) 2948.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00931
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 283489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:27:23

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 283489
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. 1997-09-28T17:06:36.45 10.0 undecidable manual SG 308 1.0323 -0.85 0.3
--.FB9.Z. 1997-09-28T17:06:26.82 10.0 undecidable manual SG 342 0.7326 -1.04 0.3
--.MNS.Z. 1997-09-28T17:06:24.94 10.0 undecidable manual SG 205 0.6549 -0.4 0.7
--.CRE.Z. 1997-09-28T17:06:23.24 10.0 undecidable manual PG 308 1.0323 1.2 0.4
--.ARV.Z. 1997-09-28T17:06:21.18 10.0 undecidable manual SG 349 0.5217 0.27 0.8
--.MNS.Z. 1997-09-28T17:06:15.11 10.0 undecidable manual PG 205 0.6549 -0.03 2.2
--.FB9.Z. 1997-09-28T17:06:15.76 10.0 undecidable manual PG 342 0.7326 -0.83 1
--.ASS.Z. 1997-09-28T17:06:14.00 10.0 undecidable manual SG 284 0.3108 0.46 0.7
--.ARV.Z. 1997-09-28T17:06:13.24 10.0 undecidable manual PG 349 0.5217 0.66 1.4
--.ASS.Z. 1997-09-28T17:06:08.00 10.0 undecidable manual PG 284 0.3108 -0.32 2
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