Earthquake with magnitude of Md 3.0 on date 23-01-1997 and time 20:50:02 (UTC) in region 2 km W Staffolo (AN)

A magnitude Md 3.0 earthquake occured in region: 2 km W Staffolo (AN), on

  • 23-01-1997 20:50:02 (UTC)
  • 23-01-1997 21:50:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.42, 13.16 at 13 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
Staffolo AN 2 2253 2253
San Paolo di Jesi AN 4 933 3186
Apiro MC 4 2280 5466
Cupramontana AN 4 4756 10222
Monte Roberto AN 7 3061 13283
Maiolati Spontini AN 7 6248 19531
Castelbellino AN 7 4947 24478
Cingoli MC 7 10352 34830
Poggio San Vicino MC 9 246 35076
Rosora AN 10 1985 37061
Castelplanio AN 10 3540 40601
Mergo AN 11 1037 41638
Poggio San Marcello AN 12 693 42331
Serra San Quirico AN 12 2850 45181
Jesi AN 13 40399 85580
Montecarotto AN 14 1987 87567
Santa Maria Nuova AN 15 4179 91746
Filottrano AN 16 9499 101245
Appignano MC 17 4213 105458
Serra de' Conti AN 17 3746 109204
Monsano AN 17 3405 112609
Belvedere Ostrense AN 17 2234 114843
San Marcello AN 17 2057 116900
Treia MC 18 9403 126303
Cerreto d'Esi AN 18 3817 130120
Genga AN 18 1797 131917
Arcevia AN 20 4612 136529

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Ancona (100861 inhabitants)
48 Km S of Fano (60888 inhabitants)
58 Km SE of Pesaro (94582 inhabitants)
64 Km NE of Foligno (57155 inhabitants)
72 Km E of Perugia (166134 inhabitants)
85 Km SE of Rimini (147750 inhabitants)
96 Km NW of Teramo (54892 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 3.0
ML-VAX 2.0
1997-01-23
20:50:02
43.43 13.16 13 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 259999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-01-23 20:50:02 ± 0.431
Latitude 43.43 ± 0.02
Longitude 13.16 ± 0.04
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 259999

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) 3841.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.02857
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 259999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:05:57

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 259999
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 Takeoff_angle Residual Weight
--.BDI.Z. 1997-01-23T20:50:59.61 10.0 undecidable manual SN 289 0.0176 0.74 0.4
--.FVI.Z. 1997-01-23T20:50:50.31 10.0 undecidable manual PN 355 0.0286 -1.48 0.2
--.FG3.Z. 1997-01-23T20:50:45.80 10.0 undecidable manual PN 128 0.024 0.18 1
--.SFI.Z. 1997-01-23T20:50:38.10 10.0 undecidable manual SN 297 0.0096 0.49 0.6
--.MNS.Z. 1997-01-23T20:50:38.10 10.0 undecidable manual SN 198 0.0098 -0.31 0.6
--.AQU.Z. 1997-01-23T20:50:38.68 10.0 undecidable manual SN 170 0.0097 0.56 0.5
--.BDI.Z. 1997-01-23T20:50:35.29 10.0 undecidable manual PN 289 0.0176 0.25 1.2
--.CRE.Z. 1997-01-23T20:50:34.49 10.0 undecidable manual SG 282 0.008 1.26 0.3
--.PII.Z. 1997-01-23T20:50:34.79 10.0 undecidable manual PN 279 0.0173 0.1 1.2
--.SDI.Z. 1997-01-23T20:50:34.33 10.0 undecidable manual PN 164 0.0159 1.73 0.2
--.PQ9.Z. 1997-01-23T20:50:28.48 10.0 undecidable manual PN 172 0.0127 0.91 0.9
--.RSM.Z. 1997-01-23T20:50:28.77 10.0 undecidable manual SG 314 0.0064 1.27 0.3
--.CSNT.Z. 1997-01-23T20:50:25.66 10.0 undecidable manual PN 272 0.0121 -1.14 0.7
--.AQU.Z. 1997-01-23T20:50:21.95 10.0 undecidable manual PN 170 0.0097 -1.1 0.8
--.SFI.Z. 1997-01-23T20:50:21.70 10.0 positive manual PN 297 0.0096 -1.05 1.7
--.MNS.Z. 1997-01-23T20:50:21.85 10.0 undecidable manual PN 198 0.0098 -1.38 0.5
--.ASS.Z. 1997-01-23T20:50:20.15 10.0 undecidable manual SG 225 0.0046 -0.88 0.4
--.CRE.Z. 1997-01-23T20:50:19.69 10.0 undecidable manual PG 282 0.008 -0.55 1.4
--.FB9.Z. 1997-01-23T20:50:17.82 10.0 undecidable manual SG 313 0.0034 1.01 0.4
--.RSM.Z. 1997-01-23T20:50:16.00 10.0 negative manual PG 314 0.0064 -0.93 2
--.ASS.Z. 1997-01-23T20:50:12.59 10.0 positive manual PG 225 0.0046 -0.59 2.7
--.ARV.Z. 1997-01-23T20:50:10.12 10.0 undecidable manual SG 295 0.0015 -0.09 0.7
--.FB9.Z. 1997-01-23T20:50:10.38 10.0 negative manual PG 313 0.0034 -0.38 3.1
--.ARV.Z. 1997-01-23T20:50:07.70 10.0 positive manual PG 295 0.0015 0.77 2.3
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