Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 21-09-2019 and time 15:02:58 (Italy) in region 8 km NW Montescaglioso (MT)

A magnitude ML 1.8 earthquake occured in region: 8 km NW Montescaglioso (MT), on

  • 21-09-2019 13:02:58 (UTC)
  • 21-09-2019 15:02:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.5910, 16.5890 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
Montescaglioso MT 8 9942 9942
Miglionico MT 8 2510 12452
Matera MT 9 60436 72888
Pomarico MT 9 4145 77033
Ginosa TA 14 22632 99665
Ferrandina MT 16 8853 108518
Grottole MT 18 2208 110726
Laterza TA 18 15290 126016

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Matera (60436 inhabitants)
27 Km S of Altamura (70396 inhabitants)
56 Km W of Taranto (201100 inhabitants)
59 Km S of Bitonto (55540 inhabitants)
64 Km SW of Bari (326344 inhabitants)
66 Km E of Potenza (67122 inhabitants)
68 Km S of Molfetta (59874 inhabitants)
73 Km S of Bisceglie (55422 inhabitants)
75 Km SE of Andria (100440 inhabitants)
77 Km S of Trani (56217 inhabitants)
85 Km SE of Barletta (94814 inhabitants)
95 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 1.8 2019-09-21
13:02:58		 40.5913 16.5892 26 2020-02-28
16:41:58		 Bollettino Sismico Italiano INGV 73443671
Reviewed
Rev100 		ML 2.0 2019-09-21
13:02:58		 40.5938 16.5952 26 2019-09-21
13:16:50		 Sala Sismica INGV-Roma 72612241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-21 13:02:58 ± 0.16
Latitude 40.5913 ± 0.0090
Longitude 16.5892 ± 0.0083
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73443671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 846
Semi-minor axis of confidence ellipse (meter) 645
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 1.05580
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 73443671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-25 14:49:17

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 72612241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-21 13:16:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACER.HHZ. 2019-09-21T13:03:17.53 0.6 undecidable manual S 292 58.497 108 0.73 39
IV.BULG.HHZ. 2019-09-21T13:03:17.44 0.6 undecidable manual P 241 117.1938 98 -0.29 40
OT.TAR1.HHZ. 2019-09-21T13:03:17.45 0.3 undecidable manual S 97 59.0964 108 0.51 64
IV.NOCI.HHZ. 2019-09-21T13:03:13.78 0.3 undecidable manual S 61 45.621 114 0.21 69
IV.AMUR.HHZ. 2019-09-21T13:03:11.06 0.3 undecidable manual S 2 35.0427 121 0 73
IV.MCEL.HHZ. 2019-09-21T13:03:10.34 0.3 undecidable manual P 246 72.7716 104 -0.66 58
IV.PALZ.HHZ. 2019-09-21T13:03:09.85 0.6 undecidable manual P 307 65.7897 106 -0.11 46
IV.ACER.HHZ. 2019-09-21T13:03:09.08 0.1 undecidable manual P 292 58.497 108 0.19 91
OT.TAR1.HHZ. 2019-09-21T13:03:09.16 0.3 undecidable manual P 97 59.0964 108 0.19 68
OT.OT15.EHZ. 2019-09-21T13:03:09.56 0.6 undecidable manual P 23 62.3931 107 0.1 46
IV.MIGL.HHZ. 2019-09-21T13:03:07.17 0.3 undecidable manual S 277 12.5763 151 0.38 71
IV.LTRZ.EHZ. 2019-09-21T13:03:07.66 0.3 undecidable manual S 86 19.3695 139 -0.18 74
IV.PTRP.HHZ. 2019-09-21T13:03:07.35 0.1 undecidable manual P 260 45.1215 114 0.39 90
GE.MATE.HHZ. 2019-09-21T13:03:06.46 0.3 undecidable manual S 57 11.5773 153 -0.22 75
IV.NOCI.HHZ. 2019-09-21T13:03:06.91 0.1 undecidable manual P 61 45.621 114 -0.11 96
IV.AMUR.HHZ. 2019-09-21T13:03:05.38 0.1 undecidable manual P 2 35.0427 121 -0.2 96
IV.LTRZ.EHZ. 2019-09-21T13:03:03.43 0.1 negative manual P 86 19.3695 139 -0.28 96
GE.MATE.HHZ. 2019-09-21T13:03:02.86 0.1 negative manual P 57 11.5773 153 -0.19 100
IV.MIGL.HHZ. 2019-09-21T13:03:02.96 0.1 positive manual P 277 12.5763 151 -0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GE.MATE.HHN. ML:1.9 0.00041730339999999997 0.16 AML other m 2019-09-21T13:03:06.66
GE.MATE.HHE. ML:2.0 0.0005977203500000001 0.1856 AML other m 2019-09-21T13:03:06.71
IV.AMUR.HHE. ML:1.7 0.000148383305 0.1216 AML other m 2019-09-21T13:03:12.75
IV.AMUR.HHN. ML:1.6 0.00013984075 0.1216 AML other m 2019-09-21T13:03:11.61
IV.NOCI.HHN. ML:2.3 0.0004825009 0.1984 AML other m 2019-09-21T13:03:14.31
IV.NOCI.HHE. ML:2.3 0.0004907078999999999 0.1344 AML other m 2019-09-21T13:03:13.97
IV.PTRP.HHE. ML:1.7 0.000117573125 0.3968 AML other m 2019-09-21T13:03:17.09
IV.PTRP.HHN. ML:1.6 0.00009560826999999999 0.3776 AML other m 2019-09-21T13:03:17.88
IV.ACER.HHN. ML:1.9 0.00015287875000000002 0.2816 AML other m 2019-09-21T13:03:18.75
IV.ACER.HNN. ML:1.9 0.0001607965 0.2624 AML other m 2019-09-21T13:03:18.61
IV.ACER.HNE. ML:2.2 0.0002708671 0.3776 AML other m 2019-09-21T13:03:18.73
IV.ACER.HHE. ML:2.2 0.00029476904999999997 0.3776 AML other m 2019-09-21T13:03:18.72
OT.TAR1.HHE. ML:2.0 0.00017077475 0.3584 AML other m 2019-09-21T13:03:18.51
OT.TAR1.HHN. ML:1.8 0.00012040698 0.1344 AML other m 2019-09-21T13:03:18.52
IV.MCEL.HHN. ML:1.6 0.000055102675 0.3392 AML other m 2019-09-21T13:03:22.82
IV.MCEL.HNN. ML:1.7 0.000068832175 0.5632 AML other m 2019-09-21T13:03:22.04
IV.MCEL.HNE. ML:1.7 0.00008157162 0.7232 AML other m 2019-09-21T13:03:25.06
IV.BULG.HHE. ML:1.5 0.0000239705795 0.7232 AML other m 2019-09-21T13:03:38.63
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
Waveforms Seismic signals in miniseed + resp format Download