Earthquake (quarry blast) with magnitude of ML 1.7 on date 23-02-2017 and time 08:23:48 (Italy) in region 3 km W Toritto (BA)

A magnitude ML 1.7 (quarry blast) earthquake occured in region: 3 km W Toritto (BA), on

  • 23-02-2017 07:23:48 (UTC)
  • 23-02-2017 08:23:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.99, 16.65 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Toritto BA 3 8530 8530
Grumo Appula BA 6 12961 21491
Binetto BA 6 2234 23725
Palo del Colle BA 9 21651 45376
Bitetto BA 10 11971 57347
Sannicandro di Bari BA 13 9957 67304
Bitonto BA 14 55540 122844
Modugno BA 15 38515 161359
Cassano delle Murge BA 16 14732 176091
Bitritto BA 16 11278 187369
Terlizzi BA 18 26983 214352
Adelfia BA 19 17184 231536
Ruvo di Puglia BA 19 25534 257070
Acquaviva delle Fonti BA 20 20799 277869
Altamura BA 20 70396 348265

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km S of Bitonto (55540 inhabitants)
20 Km NE of Altamura (70396 inhabitants)
24 Km SW of Bari (326344 inhabitants)
24 Km S of Molfetta (59874 inhabitants)
30 Km SE of Bisceglie (55422 inhabitants)
36 Km N of Matera (60436 inhabitants)
37 Km SE of Trani (56217 inhabitants)
39 Km SE of Andria (100440 inhabitants)
48 Km SE of Barletta (94814 inhabitants)
69 Km E of Cerignola (58396 inhabitants)
76 Km NW of Taranto (201100 inhabitants)
81 Km NE of Potenza (67122 inhabitants)
93 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
Rev 1000 ML 1.7 2017-02-23
07:23:48
40.99 16.65 0 2018-01-10
09:51:18
Bollettino Sismico Italiano INGV 50639491
Rev 100 ML 1.6 2017-02-23
07:23:49
40.94 16.59 10 2017-02-23
07:33:55
Sala Sismica INGV-Roma 41530321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-23 07:23:48 ± 0.82
Latitude 40.99 ± 0.04
Longitude 16.65 ± 0.03
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 50639491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4700
Semi-minor axis of confidence ellipse (meter) 2740
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 4700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 202
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41908
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 50639491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-02 17:14:12

ML:1.6

Field Value
Value 1.6
Uncertainty 0
Num. used stations 1
Type of magnitude ML
Reference to an origin 41530321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-23 07:33:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CIRO.HHZ. 2017-02-23T07:25:44.24 3.0 positive manual Pn -2.61 0
IV.CNCS.HNZ. 2017-02-23T07:25:41.98 3.0 undecidable manual Pg 15.5 0
IV.CTL8.HNZ. 2017-02-23T07:25:37.76 3.0 undecidable manual Pg 10.9 0
IV.RESU.HHZ. 2017-02-23T07:25:32.98 3.0 undecidable manual Sn -2.86 0
IV.RAVA.EHZ. 2017-02-23T07:25:17.63 3.0 negative manual Pg 5.51 0
IV.ISTR.HHZ. 2017-02-23T07:25:05.03 3.0 undecidable manual Sg 3.98 0
IV.RESU.HHZ. 2017-02-23T07:24:55.30 3.0 undecidable manual Pg 6.35 0
IV.APEC.HHZ. 2017-02-23T07:24:52.82 3.0 positive manual Pg 1.17 0
IV.RM33.EHZ. 2017-02-23T07:24:34.67 3.0 positive manual Pg -2.13 0
IV.T1299.EHZ. 2017-02-23T07:24:34.21 3.0 negative manual Pg -2.92 0
IV.LRP.HHZ. 2017-02-23T07:24:23.97 3.0 undecidable manual Pg -4.55 0
IV.LTRZ.EHZ. 2017-02-23T07:23:57.07 0.1 undecidable manual P 162 0.4119 90 -0.46 95
IV.NOCI.HHE. 2017-02-23T07:23:57.13 0.3 undecidable manual P 123 0.3759 90 0.4 73
IV.MIGL.HHZ. 2017-02-23T07:23:57.52 0.3 undecidable manual P 202 0.4191 90 -0.18 75
IV.MRVN.HHZ. 2017-02-23T07:23:55.59 1.0 undecidable manual P 281 0.3471 90 -0.49 24
GE.MATE.HHZ. 2017-02-23T07:23:55.82 0.1 undecidable manual P 173 0.3471 90 -0.28 100
IV.AMUR.HHZ. 2017-02-23T07:23:51.17 0.1 undecidable manual P 200 0.0926 91 0.74 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GE.MATE.HHE. ML:1.7 0.0001865 0.24 AML other m 2017-02-23T07:24:02.01
GE.MATE.HHN. ML:1.7 0.0001685 1.52 AML other m 2017-02-23T07:24:06.76
IV.ISTR.HHN. ML:4.2 0.00243 1.48 AML other m 2017-02-23T07:24:36.15
IV.ISTR.HHE. ML:4.1 0.00187 0.4 AML other m 2017-02-23T07:24:36.69
IV.RM33.EHN. ML:2.8 5.365E-5 1.24 AML other m 2017-02-23T07:24:37.78
IV.RM33.EHE. ML:2.8 6.475E-5 0.96 AML other m 2017-02-23T07:24:37.46
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download