Earthquake (quarry blast) with magnitude of ML 1.5 on date 11-05-2021 and time 10:36:42 (Italy) in region 8 km E Matera (MT)

A magnitude ML 1.5 (quarry blast) earthquake occured in region: 8 km E Matera (MT), on

  • 11-05-2021 08:36:42 (UTC)
  • 11-05-2021 10:36:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.68, 16.696 at 5 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Matera MT 8 60436 60436
Laterza TA 11 15290 75726
Ginosa TA 12 22632 98358
Santeramo in Colle BA 14 26734 125092
Montescaglioso MT 14 9942 135034

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km E of Matera (60436 inhabitants)
21 Km SE of Altamura (70396 inhabitants)
48 Km S of Bitonto (55540 inhabitants)
51 Km W of Taranto (201100 inhabitants)
52 Km S of Bari (326344 inhabitants)
59 Km S of Molfetta (59874 inhabitants)
65 Km S of Bisceglie (55422 inhabitants)
70 Km SE of Andria (100440 inhabitants)
70 Km SE of Trani (56217 inhabitants)
75 Km E of Potenza (67122 inhabitants)
79 Km SE of Barletta (94814 inhabitants)
93 Km SE of Cerignola (58396 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.5 2021-05-11
08:36:42
40.6798 16.6957 5 2021-05-11
08:51:11
Sala Sismica INGV-Roma 89985431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-11 08:36:42 ± 0.1
Latitude 40.6798 ± 0.0063
Longitude 16.6957 ± 0.0059
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type quarry blast
Origin ID 89985431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 523
Semi-minor axis of confidence ellipse (meter) 489
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 198
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.536
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 89985431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-11 08:51:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAPR.HNZ. 2021-05-11T08:38:42.83 3.0 undecidable manual Pg 18.629999 0
MN.VAE.HHZ. 2021-05-11T08:38:35.16 3.0 undecidable manual Sg 14.27 0
IV.ATPI.EHZ. 2021-05-11T08:38:34.79 3.0 undecidable manual Sn -2.05 0
IV.EUCT.HNZ. 2021-05-11T08:38:29.79 3.0 undecidable manual Pn 3.51 0
IV.NDIM.HHZ. 2021-05-11T08:38:27.81 3.0 positive manual Pg 17.51 0
CR.ZAG.BHZ. 2021-05-11T08:38:12.64 3.0 negative manual Pg 13.05 0
IV.FIR.HHZ. 2021-05-11T08:38:11.53 3.0 undecidable manual Pg 13.76 0
MN.TRI.HHZ. 2021-05-11T08:38:04.36 3.0 negative manual Pn 0.94 0
IV.IMOL.HNZ. 2021-05-11T08:38:02.80 3.0 positive manual Pn 3.5 0
IV.PE3.EHZ. 2021-05-11T08:38:01.53 3.0 undecidable manual Pg 13.94 0
IV.ATPI.EHZ. 2021-05-11T08:38:00.99 3.0 undecidable manual Pg 14.96 0
IV.PIEI.HHZ. 2021-05-11T08:38:00.61 3.0 undecidable manual Pg 14.8 0
IV.MURB.HHZ. 2021-05-11T08:37:58.82 3.0 negative manual Pg 15.38 0
IV.ATFO.HHZ. 2021-05-11T08:37:57.74 3.0 negative manual Pg 13.75 0
IV.PP3.EHZ. 2021-05-11T08:37:50.44 3.0 negative manual Pg 13.67 0
IV.BSSO.HHZ. 2021-05-11T08:37:37.16 3.0 undecidable manual Sg -0.1 0
IV.ARRO.EHZ. 2021-05-11T08:37:35.78 3.0 negative manual Pn -0.14 0
IV.GIZZ.HHZ. 2021-05-11T08:37:33.37 3.0 undecidable manual S 0.08 0
IV.MRLC.HHZ. 2021-05-11T08:37:11.21 3.0 undecidable manual S -2 0
IV.SPS2.HHZ. 2021-05-11T08:37:04.31 3.0 positive manual P -1.57 0
IV.MRVN.HHE. 2021-05-11T08:37:02.91 1.0 undecidable manual S 315 0.536 50 0.45 21
OT.TAR1.HHZ. 2021-05-11T08:37:00.46 0.3 undecidable manual S 109 0.473 50 -0.11 68
OT.MASS.HHN. 2021-05-11T08:36:56.29 0.3 undecidable manual S 98 0.3435 97 0.21 68
IV.NOCI.HHZ. 2021-05-11T08:36:54.99 0.3 undecidable manual S 69 0.2995 98 0.57 63
OT.TAR1.HHZ. 2021-05-11T08:36:53.36 0.1 undecidable manual P 109 0.473 50 0.32 86
IV.MRVN.HHE. 2021-05-11T08:36:53.88 0.1 undecidable manual P 315 0.536 50 -0.25 87
IV.AMUR.HHZ. 2021-05-11T08:36:52.24 0.3 undecidable manual S 343 0.2374 101 0.19 70
IV.MIGL.HHZ. 2021-05-11T08:36:51.44 0.6 undecidable manual S 249 0.2077 102 0.52 43
OT.MASS.HHN. 2021-05-11T08:36:49.97 0.1 undecidable manual P 98 0.3435 97 -0.47 86
IV.NOCI.HHZ. 2021-05-11T08:36:49.23 0.1 undecidable manual P 69 0.2995 98 -0.25 91
IV.AMUR.HHZ. 2021-05-11T08:36:47.86 0.1 undecidable manual P 343 0.2374 101 -0.26 92
IV.MIGL.HHZ. 2021-05-11T08:36:47.44 0.1 undecidable manual P 249 0.2077 102 -0.02 97
GE.MATE.HHZ. 2021-05-11T08:36:44.81 0.3 undecidable manual S 168 0.0315 145 -0.03 75
GE.MATE.HHZ. 2021-05-11T08:36:43.93 0.1 undecidable manual P 168 0.0315 145 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIGL.HHN. ML:1.8 0.00045878615 0.6016 AML other m 2021-05-11T08:36:58.67
IV.AMUR.HHE. ML:1.3 0.00011141024 0.3392 AML other m 2021-05-11T08:36:54.17
IV.MIGL.HHE. ML:1.9 0.00050648185 0.8832 AML other m 2021-05-11T08:37:00.37
IV.AMUR.HHN. ML:1.2 8.8355405E-5 0.4992 AML other m 2021-05-11T08:36:55.86
IV.NOCI.HHN. ML:1.4 0.00010643654 0.3968 AML other m 2021-05-11T08:36:59.27
IV.NOCI.HHE. ML:1.4 0.0001216792 0.9024 AML other m 2021-05-11T08:37:01.24
IV.SPS2.HHE. ML:1.7 2.535E-5 0.44 AML other m 2021-05-11T08:37:14.42
IV.SPS2.HHN. ML:1.6 2.035E-5 0.18 AML other m 2021-05-11T08:37:15.91
GE.MATE.HHE. ML:0 0.0035039115 0.16 AML other m 2021-05-11T08:36:45.23
GE.MATE.HHN. ML:0 0.007647127 0.224 AML other m 2021-05-11T08:36:45.32
IV.ARRO.EHE. ML:2.5 2.019413E-5 2.6816 AML other m 2021-05-11T08:38:41.08
IV.ARRO.EHN. ML:2.5 1.7736575E-5 0.5632 AML other m 2021-05-11T08:37:36.05
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