Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 12-08-2019 and time 15:33:10 (Italy) in region 1 km NW Grottole (MT)

A magnitude ML 1.1 earthquake occured in region: 1 km NW Grottole (MT), on

  • 12-08-2019 13:33:10 (UTC)
  • 12-08-2019 15:33:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6100, 16.3740 at 26 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Grottole MT 1 2208 2208
Grassano MT 8 5189 7397
Salandra MT 10 2829 10226
Miglionico MT 12 2510 12736
Garaguso MT 14 1073 13809
Ferrandina MT 15 8853 22662
Calciano MT 16 777 23439
San Mauro Forte MT 17 1552 24991
Pomarico MT 18 4145 29136
Oliveto Lucano MT 18 450 29586
Irsina MT 19 4960 34546
Tricarico MT 20 5388 39934

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Matera (60436 inhabitants)
29 Km SW of Altamura (70396 inhabitants)
48 Km E of Potenza (67122 inhabitants)
62 Km SW of Bitonto (55540 inhabitants)
69 Km S of Molfetta (59874 inhabitants)
69 Km S of Andria (100440 inhabitants)
71 Km SW of Bari (326344 inhabitants)
71 Km S of Bisceglie (55422 inhabitants)
74 Km S of Trani (56217 inhabitants)
74 Km W of Taranto (201100 inhabitants)
79 Km S of Barletta (94814 inhabitants)
83 Km SE 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 		ML 1.1 2019-08-12
13:33:10		 40.6103 16.3742 26 2019-11-13
14:31:01		 Bollettino Sismico Italiano INGV 72309541
Reviewed
Rev100 		ML 1.2 2019-08-12
13:33:10		 40.6068 16.3708 26 2019-08-12
13:41:15		 Sala Sismica INGV-Roma 71418261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-12 13:33:10 ± 0.21
Latitude 40.6103 ± 0.0126
Longitude 16.3742 ± 0.0095
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72309541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1416
Semi-minor axis of confidence ellipse (meter) 414
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 1420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.55218
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 72309541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-11 09:59:06

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 71418261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-12 13:41:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOCI.HHZ. 2019-08-12T13:33:31.09 0.6 undecidable manual S 71 61.2942 107 0.66 41
IV.MRVN.HHZ. 2019-08-12T13:33:27.88 0.6 undecidable manual S 343 52.2033 110 -0.24 46
IV.ACER.HHZ. 2019-08-12T13:33:25.88 0.6 undecidable manual S 298 41.2254 116 0.45 45
IV.AMUR.HHZ. 2019-08-12T13:33:24.81 0.6 undecidable manual S 30 38.1285 118 0.1 49
IV.LTRZ.EHZ. 2019-08-12T13:33:24.41 0.6 undecidable manual S 91 37.4292 119 -0.13 48
IV.NOCI.HHZ. 2019-08-12T13:33:22.99 0.3 undecidable manual P 71 61.2942 107 0.78 58
GE.MATE.HHZ. 2019-08-12T13:33:22.17 0.3 undecidable manual S 81 28.1496 128 -0.28 72
IV.PALZ.HHZ. 2019-08-12T13:33:21.15 0.3 undecidable manual P 317 50.8158 111 0.47 66
IV.MRVN.HHZ. 2019-08-12T13:33:20.53 0.6 undecidable manual P 343 52.2033 110 -0.34 45
IV.MIGL.HHZ. 2019-08-12T13:33:19.21 0.3 undecidable manual S 97 5.6943 166 0.16 75
IV.ACER.HHZ. 2019-08-12T13:33:19.06 0.1 undecidable manual P 298 41.2254 116 -0.26 93
IV.LTRZ.EHZ. 2019-08-12T13:33:18.58 0.3 undecidable manual P 91 37.4292 119 -0.23 71
IV.AMUR.HHZ. 2019-08-12T13:33:18.88 0.3 undecidable manual P 30 38.1285 118 -0.03 74
GE.MATE.HHZ. 2019-08-12T13:33:17.34 0.1 undecidable manual P 81 28.1496 128 -0.26 96
IV.PTRP.HHZ. 2019-08-12T13:33:17.74 0.1 undecidable manual P 250 28.1496 128 0.13 98
IV.MIGL.HHZ. 2019-08-12T13:33:15.37 0.1 undecidable manual P 97 5.6943 166 -0.27 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIGL.HHE. ML:1.9 0.00046800000000000005 0.12 AML other m 2019-08-12T13:33:19.31
GE.MATE.HHE. ML:1.0 0.00003795 0.32 AML other m 2019-08-12T13:33:22.23
GE.MATE.HHN. ML:1.2 0.00005355 0.16 AML other m 2019-08-12T13:33:22.40
IV.LTRZ.EHE. ML:0.9 0.000022850000000000003 0.88 AML other m 2019-08-12T13:33:24.18
IV.LTRZ.EHN. ML:1.7 0.00015155000000000002 0.42 AML other m 2019-08-12T13:33:24.73
IV.PTRP.HHN. ML:1.0 0.000032986135 1.0208 AML other m 2019-08-12T13:33:24.84
IV.AMUR.HHN. ML:1.1 0.00003485 1.1 AML other m 2019-08-12T13:33:25.86
IV.AMUR.HHE. ML:1.1 0.0000359 0.56 AML other m 2019-08-12T13:33:25.59
IV.ACER.HHE. ML:1.3 0.0000502 0.48 AML other m 2019-08-12T13:33:26.37
IV.ACER.HHN. ML:1.3 0.00006205 0.44 AML other m 2019-08-12T13:33:26.56
IV.MRVN.HHE. ML:0.8 0.000015899999999999997 0.92 AML other m 2019-08-12T13:33:29.76
IV.MRVN.HHN. ML:0.8 0.0000165 0.42 AML other m 2019-08-12T13:33:30.51
IV.NOCI.HHE. ML:1.3 0.0000336 1 AML other m 2019-08-12T13:33:33.27
IV.NOCI.HHN. ML:1.3 0.0000369 0.94 AML other m 2019-08-12T13:33:34.94
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