Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.5 on date 30-03-2017 and time 07:40:35 (UTC) in region 6 km S Toritto (BA)

A magnitude ML 1.5 (quarry blast) earthquake occured in region: 6 km S Toritto (BA), on

  • 30-03-2017 07:40:35 (UTC)
  • 30-03-2017 09:40:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.9420, 16.6770 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 6 8530 8530
Grumo Appula BA 9 12961 21491
Binetto BA 10 2234 23725
Cassano delle Murge BA 10 14732 38457
Sannicandro di Bari BA 12 9957 48414
Bitetto BA 13 11971 60385
Palo del Colle BA 13 21651 82036
Acquaviva delle Fonti BA 15 20799 102835
Altamura BA 16 70396 173231
Bitritto BA 17 11278 184509
Santeramo in Colle BA 17 26734 211243
Adelfia BA 18 17184 228427
Modugno BA 18 38515 266942
Bitonto BA 19 55540 322482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Altamura (70396 inhabitants)
19 Km S of Bitonto (55540 inhabitants)
26 Km SW of Bari (326344 inhabitants)
30 Km S of Molfetta (59874 inhabitants)
31 Km N of Matera (60436 inhabitants)
37 Km SE of Bisceglie (55422 inhabitants)
43 Km SE of Trani (56217 inhabitants)
45 Km SE of Andria (100440 inhabitants)
54 Km SE of Barletta (94814 inhabitants)
70 Km NW of Taranto (201100 inhabitants)
74 Km SE of Cerignola (58396 inhabitants)
81 Km E of Potenza (67122 inhabitants)
99 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 		ML 1.5 2017-03-30
07:40:35		 40.9415 16.677 0 2018-01-10
09:55:05		 Bollettino Sismico Italiano INGV 50627601
Reviewed
Rev100 		ML 1.6 2017-03-30
07:40:34		 40.9517 16.6112 10 2017-03-30
07:51:44		 Sala Sismica INGV-Roma 43137551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-30 07:40:35 ± 0.41
Latitude 40.9415 ± 0.0243
Longitude 16.6770 ± 0.0226
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 50627601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2970
Semi-minor axis of confidence ellipse (meter) 1450
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 27
Circular confidence region, given by single value of horizontal uncertainty (meter) 2970.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.58906
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 50627601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-03 16:46:18

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 43137551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-30 07:51:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRAC.EHZ. 2017-03-30T07:40:47.12 0.6 undecidable manual P 198 65.3901 50 -0.9 36
IV.MRVN.HHZ. 2017-03-30T07:40:43.40 0.3 undecidable manual P 288 42.4242 90 -0.22 71
IV.LTRZ.EHZ. 2017-03-30T07:40:42.88 0.1 undecidable manual P 162 39.3273 90 -0.13 96
IV.NOCI.HHZ. 2017-03-30T07:40:42.73 0.3 undecidable manual P 117 36.6411 90 0.26 71
GE.MATE.HHZ. 2017-03-30T07:40:41.64 0.1 undecidable manual P 176 32.5452 90 0 100
IV.AMUR.HHZ. 2017-03-30T07:40:37.00 0.1 positive manual P 238 7.1928 91 0.43 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GE.MATE.HHE. ML:1.6 0.0002031172 0.2624 AML other m 2017-03-30T07:40:47.84
GE.MATE.HHN. ML:1.5 0.00016106575000000002 0.2048 AML other m 2017-03-30T07:40:47.94
IV.LTRZ.EHE. ML:1.3 0.00007080276500000001 0.3584 AML other m 2017-03-30T07:40:50.03
IV.NOCI.HHE. ML:1.3 0.00007633084000000001 0.2176 AML other m 2017-03-30T07:40:52.69
IV.NOCI.HHN. ML:1.6 0.00014469765 0.4224 AML other m 2017-03-30T07:40:53.90
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