Earthquake with magnitude of Md 2.3 on date 06-12-1997 and time 06:17:45 (Italy) in region Costa Garganica (Foggia)

A magnitude Md 2.3 earthquake occured in region: Costa Garganica (Foggia), on

  • 06-12-1997 05:17:45 (UTC)
  • 06-12-1997 06:17:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0390, 15.5050 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
Isole Tremiti FG 9 469 469

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of San Severo (53905 inhabitants)
57 Km NW of Manfredonia (57279 inhabitants)
64 Km N of Foggia (151991 inhabitants)
92 Km NW of Cerignola (58396 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 2.3
ML-VAX 2.0
1997-12-06
05:17:45
42.039 15.505 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 315969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-12-06 05:17:45 ± 0.554
Latitude 42.0390 ± 0.0331
Longitude 15.5050 ± 0.0219
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 315969

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) 4095.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 244
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.01141
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 315969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:56:15

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 315969
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
--.FG5.Z. 1997-12-06T05:18:13.47 10.0 undecidable manual SG 193 0.777 0.3 0.6
--.MU9.Z. 1997-12-06T05:18:10.41 10.0 undecidable manual PN 180 1.2654 0.68 0.6
--.CRVI.Z. 1997-12-06T05:18:04.12 10.0 undecidable manual PG 250 0.9435 -0.44 1.2
--.FG3.Z. 1997-12-06T05:18:02.70 10.0 undecidable manual SG 134 0.4662 -1.2 0.1
--.FG5.Z. 1997-12-06T05:18:01.92 10.0 undecidable manual PG 193 0.777 0.5 1.2
--.FG2.Z. 1997-12-06T05:17:58.21 10.0 undecidable manual SG 227 0.3441 -0.63 0.4
--.FG3.Z. 1997-12-06T05:17:55.60 10.0 undecidable manual PG 134 0.4662 -0.1 2
--.FG2.Z. 1997-12-06T05:17:53.11 10.0 undecidable manual PG 227 0.3441 -0.03 2
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