Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 05-02-1997 and time 02:07:07 (Italy) in region 1 km NW Ottone (PC)

A magnitude Md 2.5 earthquake occured in region: 1 km NW Ottone (PC), on

  • 05-02-1997 01:07:07 (UTC)
  • 05-02-1997 02:07:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6340, 9.3280 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ottone PC 1 516 516
Gorreto GE 4 97 613
Zerba PC 5 77 690
Cerignale PC 5 127 817
Rovegno GE 7 554 1371
Fontanigorda GE 10 277 1648
Corte Brugnatella PC 10 586 2234
Fascia GE 11 81 2315
Rondanina GE 12 62 2377
Carrega Ligure AL 12 84 2461
Brallo di Pregola PV 12 599 3060
Rezzoaglio GE 13 995 4055
Montebruno GE 13 240 4295
Santo Stefano d'Aveto GE 14 1126 5421
Ferriere PC 14 1294 6715
Propata GE 14 142 6857
Coli PC 14 879 7736
Bobbio PC 16 3577 11313
Santa Margherita di Staffora PV 17 473 11786
Torriglia GE 18 2311 14097
Menconico PV 19 360 14457
Cabella Ligure AL 19 528 14985
Fabbrica Curone AL 19 656 15641

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NE of Genova (586655 inhabitants)
55 Km SW of Piacenza (102191 inhabitants)
63 Km S of Pavia (72576 inhabitants)
64 Km E of Alessandria (93943 inhabitants)
71 Km NW of La Spezia (93959 inhabitants)
76 Km E of Savona (61345 inhabitants)
78 Km SW of Cremona (71901 inhabitants)
81 Km W of Parma (192836 inhabitants)
85 Km SE of Vigevano (63310 inhabitants)
87 Km NW of Carrara (63133 inhabitants)
93 Km NW of Massa (69479 inhabitants)
93 Km S of Milano (1345851 inhabitants)
93 Km E of Asti (76202 inhabitants)
100 Km S of Sesto San Giovanni (81608 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 2.5
ML-VAX 1.7 		1997-02-05
01:07:07		 44.634 9.328 6 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 260489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-02-05 01:07:07 ± 0.268
Latitude 44.6340 ± 0.0138
Longitude 9.3280 ± 0.0124
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 260489

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) 1823.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 37
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01425
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 260489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:06:25

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 260489
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
--.PZZ.Z. 1997-02-05T01:07:56.36 10.0 undecidable manual SN 266 1.5762 -0.88 0.4
--.STV.Z. 1997-02-05T01:07:54.90 10.0 undecidable manual SN 255 1.4763 -0.44 0.6
--.ENR.Z. 1997-02-05T01:07:52.74 10.0 undecidable manual SN 254 1.4208 -0.47 0.6
--.ORX.Z. 1997-02-05T01:07:51.32 10.0 undecidable manual SN 316 1.3764 -0.85 0.4
--.VAI.Z. 1997-02-05T01:07:50.27 10.0 undecidable manual SN 342 1.2876 0.1 0.7
--.PII.Z. 1997-02-05T01:07:48.47 10.0 undecidable manual SN 136 1.2543 -0.72 0.5
--.IMI.Z. 1997-02-05T01:07:47.77 10.0 undecidable manual SN 235 1.2543 -1.52 0.1
--.BDI.Z. 1997-02-05T01:07:44.50 10.0 undecidable manual SN 121 1.0656 -0.41 0.7
--.ROB.Z. 1997-02-05T01:07:43.52 10.0 undecidable manual SN 252 1.0878 -1.81 0.1
--.GU9.Z. 1997-02-05T01:07:41.50 10.0 undecidable manual SG 107 0.9324 0.7 0.6
--.FIN.Z. 1997-02-05T01:07:38.34 10.0 undecidable manual SG 242 0.8991 -1.29 0.2
--.PZZ.Z. 1997-02-05T01:07:37.27 10.0 undecidable manual PN 266 1.5762 0.85 0.9
--.STV.Z. 1997-02-05T01:07:36.00 10.0 undecidable manual PN 255 1.4763 1.15 0.6
--.DOI.Z. 1997-02-05T01:07:36.33 10.0 undecidable manual PN 265 1.4874 1.31 0.5
--.CKI.Z. 1997-02-05T01:07:35.18 10.0 undecidable manual SG 254 0.777 -0.36 0.7
--.EB9.Z. 1997-02-05T01:07:35.69 10.0 undecidable manual SG 105 0.7992 -0.63 0.6
--.ENR.Z. 1997-02-05T01:07:34.93 10.0 undecidable manual PN 254 1.4208 0.83 1
--.ORO.Z. 1997-02-05T01:07:33.68 10.0 undecidable manual PN 316 1.3653 0.23 1.7
--.ORX.Z. 1997-02-05T01:07:33.66 10.0 undecidable manual PN 316 1.3764 0.16 1.7
--.VAI.Z. 1997-02-05T01:07:32.78 10.0 undecidable manual PN 342 1.2876 0.44 1.5
--.IMI.Z. 1997-02-05T01:07:31.53 10.0 undecidable manual PN 235 1.2543 -0.3 1.7
--.PII.Z. 1997-02-05T01:07:31.94 10.0 undecidable manual PN 136 1.2543 0.17 1.8
--.ZC9.Z. 1997-02-05T01:07:31.11 10.0 undecidable manual PN 102 1.1988 -0.08 1.9
--.ROB.Z. 1997-02-05T01:07:29.33 10.0 undecidable manual PN 252 1.0878 -0.22 1.9
--.BDI.Z. 1997-02-05T01:07:29.37 10.0 undecidable manual PN 121 1.0656 0.07 2
--.PCP.Z. 1997-02-05T01:07:28.27 10.0 undecidable manual SG 260 0.555 -0.44 0.7
--.GU9.Z. 1997-02-05T01:07:27.86 10.0 undecidable manual PG 107 0.9324 0.93 1.1
--.CALI.Z. 1997-02-05T01:07:26.14 10.0 undecidable manual SG 137 0.5328 -1.69 0.1
--.EB9.Z. 1997-02-05T01:07:26.90 10.0 undecidable manual PG 105 0.7992 1.75 0.2
--.FIN.Z. 1997-02-05T01:07:26.21 10.0 undecidable manual PG 242 0.8991 -0.04 2
--.CKI.Z. 1997-02-05T01:07:23.62 10.0 undecidable manual PG 254 0.777 -0.27 1.9
--.GEN.Z. 1997-02-05T01:07:21.10 10.0 undecidable manual SG 232 0.3441 -0.57 0.6
--.PCP.Z. 1997-02-05T01:07:20.46 10.0 undecidable manual PG 260 0.555 0.51 1.7
--.CALI.Z. 1997-02-05T01:07:18.69 10.0 undecidable manual PG 137 0.5328 -0.75 1.2
--.GEN.Z. 1997-02-05T01:07:16.60 10.0 undecidable manual PG 232 0.3441 0.17 2
--.BOB.Z. 1997-02-05T01:07:13.24 10.0 undecidable manual SG 32 0.1554 -1.22 0.3
--.BOB.Z. 1997-02-05T01:07:10.68 10.0 positive manual PG 32 0.1554 -1.04 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download