Earthquake with magnitude of Md 2.2 on date 27-06-1997 and time 21:46:37 (Italy) in region 3 km W Tavarnelle Val di Pesa (FI)

A magnitude Md 2.2 earthquake occured in region: 3 km W Tavarnelle Val di Pesa (FI), on

  • 27-06-1997 19:46:37 (UTC)
  • 27-06-1997 21:46:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5540, 11.1420 at 10 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
Barberino Val d'Elsa FI 3 4386 4386
Tavarnelle Val di Pesa FI 3 7800 12186
Certaldo FI 8 16121 28307
Poggibonsi SI 10 29196 57503
Montespertoli FI 11 13537 71040
San Casciano in Val di Pesa FI 12 17062 88102
San Gimignano SI 12 7820 95922
Greve in Chianti FI 15 13862 109784
Colle di Val d'Elsa SI 15 21620 131404
Castelfiorentino FI 15 17504 148908
Castellina in Chianti SI 15 2859 151767
Gambassi Terme FI 15 4870 156637
Impruneta FI 17 14615 171252
Montaione FI 18 3700 174952
Monteriggioni SI 19 9810 184762

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km S of Scandicci (50609 inhabitants)
26 Km SW of Firenze (382808 inhabitants)
30 Km NW of Siena (53903 inhabitants)
37 Km S of Prato (191150 inhabitants)
46 Km SE of Pistoia (90315 inhabitants)
61 Km W of Arezzo (99543 inhabitants)
61 Km SE of Lucca (89046 inhabitants)
62 Km E of Pisa (89158 inhabitants)
67 Km E of Livorno (159219 inhabitants)
80 Km E of Viareggio (62467 inhabitants)
88 Km N of Grosseto (82087 inhabitants)
97 Km SE of Massa (69479 inhabitants)
100 Km SW of Imola (69797 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 2.2
ML-VAX 1.6
1997-06-27
19:46:37
43.554 11.142 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 272329
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-06-27 19:46:37 ± 0.166
Latitude 43.5540 ± 0.0138
Longitude 11.1420 ± 0.0117
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 272329

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) 1805.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.00575
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 272329
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:17:22

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 272329
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
--.BDI.Z. 1997-06-27T19:46:59.59 10.0 undecidable manual SG 322 0.6327 -0.63 0.1
--.SFI.Z. 1997-06-27T19:46:59.53 10.0 undecidable manual SG 55 0.6105 0.07 0.7
--.BDI.Z. 1997-06-27T19:46:51.00 10.0 undecidable manual PG 322 0.6327 0.3 1
--.SFI.Z. 1997-06-27T19:46:50.24 10.0 undecidable manual PG 55 0.6105 -0.02 1.7
--.PII.Z. 1997-06-27T19:46:47.59 10.0 undecidable manual PG 290 0.4773 -0.05 2
--.CSNT.Z. 1997-06-27T19:46:43.34 10.0 undecidable manual SG 127 0.1332 -0.63 0.1
--.CSNT.Z. 1997-06-27T19:46:41.56 10.0 undecidable manual PG 127 0.1332 0.24 1.4
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