Earthquake with magnitude of ML 1.4 on date 20-08-2019 and time 08:10:36 (Italy) in region 3 km S Grassano (MT)

A magnitude ML 1.4 earthquake occured in region: 3 km S Grassano (MT), on

  • 20-08-2019 06:10:36 (UTC)
  • 20-08-2019 08:10:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6110, 16.2920 at 22 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
Grassano MT 3 5189 5189
Grottole MT 7 2208 7397
Garaguso MT 9 1073 8470
Calciano MT 9 777 9247
Salandra MT 10 2829 12076
Oliveto Lucano MT 12 450 12526
Tricarico MT 13 5388 17914
San Mauro Forte MT 14 1552 19466
Irsina MT 16 4960 24426
Accettura MT 17 1856 26282
Miglionico MT 19 2510 28792
Campomaggiore PZ 19 811 29603
Ferrandina MT 19 8853 38456
San Chirico Nuovo PZ 19 1368 39824

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Matera (60436 inhabitants)
33 Km SW of Altamura (70396 inhabitants)
41 Km E of Potenza (67122 inhabitants)
65 Km SW of Bitonto (55540 inhabitants)
69 Km S of Andria (100440 inhabitants)
71 Km SW of Molfetta (59874 inhabitants)
73 Km S of Bisceglie (55422 inhabitants)
75 Km S of Trani (56217 inhabitants)
75 Km SW of Bari (326344 inhabitants)
79 Km S of Barletta (94814 inhabitants)
80 Km SE of Cerignola (58396 inhabitants)
81 Km W of Taranto (201100 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 1.4 2019-08-20
06:10:36
40.611 16.2915 22 2019-11-13
14:31:03
Bollettino Sismico Italiano INGV 72695491
Reviewed
Rev100
ML 1.7 2019-08-20
06:10:36
40.6198 16.2647 22 2019-08-20
06:17:54
Sala Sismica INGV-Roma 71641891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 06:10:36 ± 0.11
Latitude 40.6110 ± 0.0063
Longitude 16.2915 ± 0.0059
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72695491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 740
Semi-minor axis of confidence ellipse (meter) 57
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.73475
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.5
Num. used stations 22
Type of magnitude ML
Reference to an origin 71641891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 06:17:54

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 72695491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-23 13:21:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HNZ. 2019-08-20T06:12:23.60 3.0 undecidable manual Sn -4.33 0
IV.OPPE.HNZ. 2019-08-20T06:12:18.50 3.0 positive manual Pg 8.79 0
IV.ZONE.HHZ. 2019-08-20T06:12:17.35 3.0 positive manual Pn -3.83 0
IV.ERC.EHZ. 2019-08-20T06:12:15.33 3.0 undecidable manual Sn -9.98 0
IV.MPG.HHZ. 2019-08-20T06:12:13.90 3.0 undecidable manual Sg 1.4 0
IV.IMOL.HNZ. 2019-08-20T06:12:05.66 3.0 positive manual Pg 9.4 0
IV.IFIL.HHZ. 2019-08-20T06:11:52.84 3.0 undecidable manual Sg 2.68 0
IV.ERC.EHZ. 2019-08-20T06:11:40.84 3.0 undecidable manual Pg 2.36 0
IV.SAMA.HHZ. 2019-08-20T06:11:31.13 3.0 positive manual Pg 2.76 0
IV.RM33.EHZ. 2019-08-20T06:11:29.83 3.0 positive manual Pg 1.76 0
IV.PAOL.HHZ. 2019-08-20T06:11:04.25 3.0 negative manual Pg -1.36 0
IV.SPS2.HHZ. 2019-08-20T06:11:01.27 3.0 positive manual Pg -1.73 0
IV.SIRI.HHZ. 2019-08-20T06:10:55.40 0.6 undecidable manual S 217 59.5959 102 0.3 46
IV.MCEL.HHZ. 2019-08-20T06:10:53.28 0.6 undecidable manual S 233 52.1034 105 0.11 49
IV.LTRZ.EHZ. 2019-08-20T06:10:51.34 0.6 undecidable manual S 91 44.4222 108 0.14 48
IX.PGN3.HHZ. 2019-08-20T06:10:50.79 0.3 undecidable manual S 264 41.9247 109 0.23 72
IV.AMUR.HHZ. 2019-08-20T06:10:50.89 0.3 undecidable manual S 39 42.0246 109 0.29 70
IV.SALB.HHZ. 2019-08-20T06:10:50.23 0.6 undecidable manual P 177 81.5517 99 -0.32 43
IV.ACER.HHZ. 2019-08-20T06:10:48.71 0.6 undecidable manual S 304 35.2425 113 -0.19 49
IV.CRAC.EHZ. 2019-08-20T06:10:47.45 0.6 undecidable manual S 155 28.1496 120 0.23 50
IV.SIRI.HHZ. 2019-08-20T06:10:46.78 0.6 undecidable manual P 217 59.5959 102 -0.44 44
IV.PTRP.HHZ. 2019-08-20T06:10:46.19 0.3 undecidable manual S 243 21.7671 128 0.39 72
IV.LTRZ.EHZ. 2019-08-20T06:10:45.29 0.3 undecidable manual P 91 44.4222 108 0.32 70
IV.MCEL.HHZ. 2019-08-20T06:10:45.82 0.1 undecidable manual P 233 52.1034 105 -0.28 93
IV.PALZ.HHZ. 2019-08-20T06:10:45.58 0.1 undecidable manual P 323 46.2204 107 0.35 92
IV.MRVN.HHZ. 2019-08-20T06:10:45.62 0.1 undecidable manual P 351 50.5161 105 -0.25 95
IX.PGN3.HHZ. 2019-08-20T06:10:44.63 0.1 undecidable manual P 264 41.9247 109 0.04 100
IV.AMUR.HHZ. 2019-08-20T06:10:44.53 0.6 undecidable manual P 39 42.0246 109 -0.09 50
IV.MIGL.HHZ. 2019-08-20T06:10:43.87 0.3 undecidable manual S 93 12.5763 145 -0.23 76
IV.ACER.HHZ. 2019-08-20T06:10:43.23 0.6 undecidable manual P 304 35.2425 113 -0.4 47
IV.CRAC.EHZ. 2019-08-20T06:10:42.86 0.3 undecidable manual P 155 28.1496 120 0.19 75
IV.PTRP.HHZ. 2019-08-20T06:10:41.63 0.1 undecidable manual P 243 21.7671 128 -0.21 100
IV.MIGL.HHZ. 2019-08-20T06:10:40.54 0.3 undecidable manual P 93 12.5763 145 -0.32 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIGL.HHE. ML:1.6 0.0002585 0.12 AML other m 2019-08-20T06:10:43.89
IV.MIGL.HHN. ML:1.5 0.0002165 1.28 AML other m 2019-08-20T06:10:43.94
IV.PTRP.HHN. ML:0.9 0.00004095 0.9 AML other m 2019-08-20T06:10:48.24
IV.CRAC.EHN. ML:1.5 0.0001375 0.28 AML other m 2019-08-20T06:10:48.91
IV.CRAC.EHE. ML:1.7 0.00020899999999999998 0.72 AML other m 2019-08-20T06:10:49.77
IV.ACER.HHN. ML:1.6 0.0001445 1.04 AML other m 2019-08-20T06:10:49.03
IV.ACER.HHE. ML:1.9 0.000261 0.78 AML other m 2019-08-20T06:10:49.70
IV.PTRP.HHE. ML:0.9 0.000041800000000000006 0.86 AML other m 2019-08-20T06:10:51.48
IV.AMUR.HHN. ML:1.1 0.00003974999999999999 0.18 AML other m 2019-08-20T06:10:52.66
IV.AMUR.HHE. ML:1.0 0.00003125 0.58 AML other m 2019-08-20T06:10:53.60
IV.SIRI.HHN. ML:1.4 0.000047 0.2 AML other m 2019-08-20T06:10:56.39
IV.SIRI.HHE. ML:1.6 0.00006939999999999999 1.8 AML other m 2019-08-20T06:10:57.98
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