Earthquake with magnitude of Md 3.2 on date 23-02-1999 and time 17:07:27 (Italy) in region 4 km NE Gravina in Puglia (BA)

A magnitude Md 3.2 earthquake occured in region: 4 km NE Gravina in Puglia (BA), on

  • 23-02-1999 16:07:27 (UTC)
  • 23-02-1999 17:07:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.851, 16.444 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
Gravina in Puglia BA 4 43872 43872
Altamura BA 10 70396 114268
Poggiorsini BA 18 1450 115718

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km W of Altamura (70396 inhabitants)
24 Km NW of Matera (60436 inhabitants)
36 Km SW of Bitonto (55540 inhabitants)
42 Km SW of Molfetta (59874 inhabitants)
44 Km S of Andria (100440 inhabitants)
44 Km S of Bisceglie (55422 inhabitants)
47 Km SW of Bari (326344 inhabitants)
47 Km S of Trani (56217 inhabitants)
54 Km S of Barletta (94814 inhabitants)
59 Km E of Potenza (67122 inhabitants)
65 Km SE of Cerignola (58396 inhabitants)
79 Km NW of Taranto (201100 inhabitants)
97 Km SE of Manfredonia (57279 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 3.2
ML-VAX 2.5
1999-02-23
16:07:27
40.851 16.444 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 360109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-02-23 16:07:27 ± 0.198
Latitude 40.8510 ± 0.0139
Longitude 16.4440 ± 0.0148
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 360109

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) 1987.6
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 30
Number of defining phases 30
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) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.02849
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

Md:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 360109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:37:40

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 11
Type of magnitude ML
Reference to an origin 360109
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
--.NRCA.Z. 1999-02-23T16:08:19.47 10.0 undecidable manual PN 309 0.0285 1.69 0.2
--.FG2.Z. 1999-02-23T16:08:09.57 10.0 undecidable manual SN 315 0.0121 -1.86 0.1
--.RGNG.Z. 1999-02-23T16:08:03.00 10.0 undecidable manual SG 322 0.0094 -0.79 0.4
--.MGR.Z. 1999-02-23T16:08:01.85 10.0 undecidable manual SG 224 0.0088 0.08 0.7
--.FG3.Z. 1999-02-23T16:07:59.32 10.0 undecidable manual SG 336 0.0083 -0.88 0.4
--.ORI.Z. 1999-02-23T16:07:56.34 10.0 undecidable manual SG 180 0.0071 0.43 0.7
--.MAB1.Z. 1999-02-23T16:07:55.79 10.0 undecidable manual PN 286 0.0137 0.66 1.2
--.CA9.Z. 1999-02-23T16:07:55.36 10.0 undecidable manual SG 274 0.0068 0.73 0.5
--.SMB1.Z. 1999-02-23T16:07:55.80 10.0 undecidable manual PN 293 0.0126 1.54 0.4
--.FG2.Z. 1999-02-23T16:07:54.27 10.0 undecidable manual PN 315 0.0121 1.46 0.5
--.SL9.Z. 1999-02-23T16:07:54.67 10.0 undecidable manual SG 233 0.0069 -0.24 0.7
--.LCI.Z. 1999-02-23T16:07:54.78 10.0 undecidable manual PN 111 0.0123 1.81 0.3
--.FG4.Z. 1999-02-23T16:07:53.77 10.0 undecidable manual SG 292 0.0067 -0.65 0.5
--.MU9.Z. 1999-02-23T16:07:52.83 10.0 undecidable manual SG 263 0.0065 -0.77 0.5
--.MRB1.Z. 1999-02-23T16:07:51.18 10.0 undecidable manual PN 284 0.0103 1.24 0.8
--.RGNG.Z. 1999-02-23T16:07:48.20 10.0 undecidable manual PG 322 0.0094 -0.2 1.7
--.CI9.Z. 1999-02-23T16:07:48.36 10.0 undecidable manual PG 271 0.0096 -0.56 1.4
--.MGR.Z. 1999-02-23T16:07:47.35 10.0 undecidable manual PG 224 0.0088 0.12 1.8
--.BRT.Z. 1999-02-23T16:07:47.76 10.0 undecidable manual SG 87 0.0048 0.44 0.7
--.FG5.Z. 1999-02-23T16:07:47.63 10.0 undecidable manual PG 296 0.0088 0.34 1.8
--.FG3.Z. 1999-02-23T16:07:45.15 10.0 undecidable manual PG 336 0.0083 -1.17 0.6
--.SGO.Z. 1999-02-23T16:07:45.35 10.0 undecidable manual PG 251 0.0082 -0.51 1.5
--.ORI.Z. 1999-02-23T16:07:44.25 10.0 undecidable manual PG 180 0.0071 0.41 1.7
--.FG4.Z. 1999-02-23T16:07:43.40 10.0 undecidable manual PG 292 0.0067 0.05 1.8
--.CA9.Z. 1999-02-23T16:07:43.46 10.0 undecidable manual PG 274 0.0068 0.36 1.8
--.SL9.Z. 1999-02-23T16:07:42.90 10.0 undecidable manual PG 233 0.0069 -1.18 0.7
--.MU9.Z. 1999-02-23T16:07:42.16 10.0 undecidable manual PG 263 0.0065 -0.35 1.7
--.LT9.Z. 1999-02-23T16:07:41.00 10.0 undecidable manual SG 131 0.0033 -0.95 0.3
--.BRT.Z. 1999-02-23T16:07:38.58 10.0 undecidable manual PG 87 0.0048 -0.31 1.5
--.LT9.Z. 1999-02-23T16:07:35.46 10.0 positive manual PG 131 0.0033 -0.32 3.1
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