Earthquake with magnitude of Md 2.0 on date 28-10-1997 and time 16:59:28 (Italy) in region 3 km SW Sassoferrato (AN)

A magnitude Md 2.0 earthquake occured in region: 3 km SW Sassoferrato (AN), on

  • 28-10-1997 15:59:28 (UTC)
  • 28-10-1997 16:59:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4200, 12.8300 at 9 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
Sassoferrato AN 3 7285 7285
Genga AN 9 1797 9082
Serra Sant'Abbondio PU 9 1027 10109
Fabriano AN 11 31480 41589
Costacciaro PG 12 1216 42805
Sigillo PG 12 2404 45209
Arcevia AN 13 4612 49821
Frontone PU 13 1300 51121
Scheggia e Pascelupo PG 13 1393 52514
Fossato di Vico PG 15 2840 55354
Serra San Quirico AN 15 2850 58204
Pergola PU 16 6333 64537
Cerreto d'Esi AN 17 3817 68354
Cantiano PU 17 2245 70599
Mergo AN 18 1037 71636

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km SW of Fano (60888 inhabitants)
50 Km NE of Perugia (166134 inhabitants)
53 Km N of Foligno (57155 inhabitants)
55 Km S of Pesaro (94582 inhabitants)
60 Km W of Ancona (100861 inhabitants)
74 Km S of Rimini (147750 inhabitants)
77 Km E of Arezzo (99543 inhabitants)
93 Km SE of Cesena (96758 inhabitants)
97 Km N of Terni (111501 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 1997-10-28
15:59:28
43.42 12.83 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 307569
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-28 15:59:28 ± 0.473
Latitude 43.4200 ± 0.0135
Longitude 12.8300 ± 0.0969
Depth (km) 9 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 307569

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) 7970.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00559
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 307569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:48:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1997-10-28T15:59:41.00 10.0 undecidable manual SG 199 0.3774 -1.33 0
--.NRCA.Z. 1997-10-28T15:59:40.50 10.0 undecidable manual PG 160 0.6216 -0.25 1
--.FB9.Z. 1997-10-28T15:59:38.47 10.0 undecidable manual SG 352 0.2664 -0.46 0.5
--.ASS.Z. 1997-10-28T15:59:36.50 10.0 undecidable manual PG 199 0.3774 0.23 1.5
--.SNTG.Z. 1997-10-28T15:59:36.38 10.0 undecidable manual SG 154 0.1776 0.64 0.4
--.FB9.Z. 1997-10-28T15:59:35.20 10.0 undecidable manual PG 352 0.2664 0.89 0.6
--.SNTG.Z. 1997-10-28T15:59:33.00 10.0 undecidable manual PG 154 0.1776 0.53 1.2
--.ARV.Z. 1997-10-28T15:59:32.34 10.0 undecidable manual SG 46 0.111 -1.04 0.2
--.ARV.Z. 1997-10-28T15:59:30.95 10.0 positive manual PG 46 0.111 -0.16 3.5
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