Earthquake with magnitude of Md 2.4 on date 22-02-1997 and time 11:58:13 (UTC) in region 3 km NE Gaggio Montano (BO)

A magnitude Md 2.4 earthquake occured in region: 3 km NE Gaggio Montano (BO), on

  • 22-02-1997 11:58:13 (UTC)
  • 22-02-1997 12:58:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2260, 10.9580 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
Gaggio Montano BO 3 4878 4878
Montese MO 5 3353 8231
Castel d'Aiano BO 7 1906 10137
Alto Reno Terme BO 8 6960 17097
Lizzano in Belvedere BO 9 2212 19309
Castel di Casio BO 9 3448 22757
Camugnano BO 12 1885 24642
Fanano MO 13 2989 27631
Zocca MO 14 4719 32350
Sambuca Pistoiese PT 14 1626 33976
Vergato BO 14 7639 41615
Sestola MO 15 2508 44123
Grizzana Morandi BO 16 3916 48039
Pavullo nel Frignano MO 16 17383 65422
Castiglione dei Pepoli BO 18 5648 71070
Montecreto MO 19 940 72010

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of Pistoia (90315 inhabitants)
40 Km N of Prato (191150 inhabitants)
43 Km SW of Bologna (386663 inhabitants)
47 Km S of Modena (184973 inhabitants)
55 Km NW of Scandicci (50609 inhabitants)
56 Km NE of Lucca (89046 inhabitants)
56 Km NW of Firenze (382808 inhabitants)
59 Km SE of Reggio nell'Emilia (171345 inhabitants)
62 Km W of Imola (69797 inhabitants)
62 Km S of Carpi (70699 inhabitants)
68 Km E of Massa (69479 inhabitants)
69 Km NE of Viareggio (62467 inhabitants)
71 Km E of Carrara (63133 inhabitants)
72 Km NE of Pisa (89158 inhabitants)
74 Km W of Faenza (58541 inhabitants)
81 Km SE of Parma (192836 inhabitants)
86 Km SW of Ferrara (133155 inhabitants)
86 Km W of Forlì (117913 inhabitants)
91 Km E of La Spezia (93959 inhabitants)
91 Km NE of Livorno (159219 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 1997-02-22
11:58:13
44.226 10.958 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 261519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-02-22 11:58:13 ± 0.172
Latitude 44.2260 ± 0.0094
Longitude 10.9580 ± 0.0130
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 261519

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) 1465.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00842
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 261519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:07:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CSNT.Z. 1997-02-22T11:58:41.46 10.0 undecidable manual SG 162 0.777 -0.74 0.3
--.SFI.Z. 1997-02-22T11:58:39.52 10.0 undecidable manual SG 116 0.7104 -0.27 0.6
--.PII.Z. 1997-02-22T11:58:35.50 10.0 undecidable manual SG 211 0.5883 -0.38 0.6
--.CRE.Z. 1997-02-22T11:58:33.79 10.0 undecidable manual PG 129 0.9324 0.81 0.5
--.CSNT.Z. 1997-02-22T11:58:30.99 10.0 undecidable manual PG 162 0.777 0.72 0.7
--.SFI.Z. 1997-02-22T11:58:28.79 10.0 undecidable manual PG 116 0.7104 -0.08 1.5
--.BDI.Z. 1997-02-22T11:58:26.11 10.0 undecidable manual SG 237 0.3108 0.23 0.7
--.PII.Z. 1997-02-22T11:58:25.80 10.0 undecidable manual PG 211 0.5883 -0.81 0.7
--.GU9.Z. 1997-02-22T11:58:25.50 10.0 undecidable manual SG 295 0.2886 0.14 0.7
--.GU9.Z. 1997-02-22T11:58:21.49 10.0 undecidable manual PG 295 0.2886 0.95 0.5
--.BDI.Z. 1997-02-22T11:58:20.58 10.0 positive manual PG 237 0.3108 -0.26 3.4
--.ZC9.Z. 1997-02-22T11:58:19.62 10.0 undecidable manual SG 6 0.1221 0.5 0.5
--.ZC9.Z. 1997-02-22T11:58:16.29 10.0 positive manual PG 6 0.1221 -0.65 2.1
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