Earthquake (quarry blast) with magnitude of ML 1.3 on date 16-04-2021 and time 07:46:01 (UTC) in region 10 km W Manfredonia (FG)

A magnitude ML 1.3 (quarry blast) earthquake occured in region: 10 km W Manfredonia (FG), on

  • 16-04-2021 07:46:01 (UTC)
  • 16-04-2021 09:46:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6080, 15.8030 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Manfredonia FG 10 57279 57279
San Giovanni Rotondo FG 13 27184 84463
Monte Sant'Angelo FG 17 12657 97120
San Marco in Lamis FG 18 13831 110951
Rignano Garganico FG 19 2117 113068

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km W of Manfredonia (57279 inhabitants)
27 Km NE of Foggia (151991 inhabitants)
36 Km E of San Severo (53905 inhabitants)
39 Km N of Cerignola (58396 inhabitants)
51 Km NW of Barletta (94814 inhabitants)
59 Km NW of Andria (100440 inhabitants)
63 Km NW of Trani (56217 inhabitants)
71 Km NW of Bisceglie (55422 inhabitants)
80 Km NW of Molfetta (59874 inhabitants)
93 Km NW of Bitonto (55540 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 1.3 2021-04-16
07:46:01
41.6077 15.8027 1 2021-07-12
16:55:07
Bollettino Sismico Italiano INGV 89349871
Reviewed
Rev100
ML 1.2 2021-04-16
07:46:00
41.5842 15.8215 9 2021-04-16
07:55:06
Sala Sismica INGV-Roma 89136531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-16 07:46:01 ± 0.36
Latitude 41.6077 ± 0.0261
Longitude 15.8027 ± 0.0120
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 89349871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2860
Semi-minor axis of confidence ellipse (meter) 950
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 2860.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 209
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24462
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 89349871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-14 14:35:31

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 89136531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-16 07:55:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTGR.HHZ. 2021-04-16T07:47:39.35 3.0 undecidable manual Sn 4.7 0
IV.RIBO.EHZ.01 2021-04-16T07:47:33.03 3.0 undecidable manual Sn 6.12 0
IV.FREG.EHZ. 2021-04-16T07:47:29.53 3.0 undecidable manual Pg 24.030001 0
IV.EUCT.HNZ. 2021-04-16T07:47:22.53 3.0 positive manual Pn 5.9 0
IV.SARZ.HNZ. 2021-04-16T07:47:20.50 3.0 undecidable manual Pn 4.84 0
IV.CAPR.HNZ. 2021-04-16T07:47:20.96 3.0 undecidable manual Pn 6.16 0
IV.FIU.EHZ. 2021-04-16T07:47:14.04 3.0 negative manual Pg 19.5 0
IV.VENL.HNZ. 2021-04-16T07:47:13.11 3.0 positive manual Pg 15.04 0
IV.ACATE.EHZ. 2021-04-16T07:47:09.19 3.0 undecidable manual Pg 15.91 0
IV.HAGA.HHZ. 2021-04-16T07:46:59.42 3.0 undecidable manual Pg 10.46 0
IV.CPGN.EHZ. 2021-04-16T07:46:59.53 3.0 undecidable manual Pg 18.860001 0
IV.SERS.HHZ. 2021-04-16T07:46:57.47 3.0 undecidable manual Sn -0.21 0
IV.RONT.HHZ. 2021-04-16T07:46:57.41 3.0 positive manual Pn 8.61 0
IV.SRES.HHZ. 2021-04-16T07:46:56.52 3.0 undecidable manual Sn 0.27 0
IV.MTGR.HHZ. 2021-04-16T07:46:53.34 3.0 undecidable manual Pn 4.75 0
IV.SEI.HHZ. 2021-04-16T07:46:52.25 3.0 negative manual Pn 2.35 0
IV.MFNL.HHZ. 2021-04-16T07:46:48.19 3.0 positive manual Pn -0.74 0
IV.RIBO.EHZ.01 2021-04-16T07:46:46.35 3.0 undecidable manual Pn 2.11 0
IV.RESU.HHZ. 2021-04-16T07:46:44.63 3.0 negative manual Pn -1.46 0
IV.ARRO.EHZ. 2021-04-16T07:46:39.75 3.0 negative manual Pg 12.93 0
IV.VVLD.HHZ. 2021-04-16T07:46:33.10 3.0 undecidable manual Sn -2.03 0
IV.MOMA.HHZ. 2021-04-16T07:46:29.32 3.0 undecidable manual Pn -0.75 0
IV.TDS.HHZ. 2021-04-16T07:46:20.73 3.0 undecidable manual Pn 1.9 0
IV.PTRJ.HNZ. 2021-04-16T07:46:19.07 3.0 undecidable manual Sg 0.32 0
IT.MCLF.HNZ. 2021-04-16T07:46:07.25 3.0 undecidable manual Pn 0.71 0
IV.APRC.HNZ. 2021-04-16T07:46:07.36 0.3 undecidable manual P 308 27.1506 91 0.62 63
OT.OT04.EHN. 2021-04-16T07:46:05.43 0.3 undecidable manual P 304 22.1556 91 -0.32 69
OT.OT06.EHZ. 2021-04-16T07:46:05.06 0.3 undecidable manual P 297 19.2696 91 -0.11 72
IV.MTMR.EHZ. 2021-04-16T07:46:05.05 3.0 undecidable manual P 0.82 0
IV.MSAG.HHZ. 2021-04-16T07:46:04.23 0.1 positive manual P 37 14.5743 92 0.01 99
IV.SGRT.HHZ. 2021-04-16T07:46:04.63 0.1 positive manual P 343 16.9719 92 -0.08 97
OT.OT05.EHN. 2021-04-16T07:46:04.10 0.3 undecidable manual P 289 17.5713 92 -0.72 61
IV.MRLC.HHZ. 2021-04-16T07:46:04.47 3.0 negative manual P -0.04 0
OT.OT03.EHZ. 2021-04-16T07:46:04.87 0.3 undecidable manual P 313 17.1717 92 0.13 72
OT.OT07.EHZ. 2021-04-16T07:46:03.20 0.3 undecidable manual P 282 7.0929 94 0.48 68
OT.OT12.EHZ. 2021-04-16T07:46:03.13 0.1 undecidable manual P 73 9.0798 93 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRLC.HNE. ML:1.6 0.00003796190500000001 0.4992 AML other m 2021-04-16T07:46:05.01
IV.MRLC.HHE. ML:1.9 0.0000884721 0.0576 AML other m 2021-04-16T07:46:07.23
IV.SGRT.HHE. ML:1.3 0.000191 1.52 AML other m 2021-04-16T07:46:07.10
IV.SGRT.HHN. ML:1.3 0.00019 0.18 AML other m 2021-04-16T07:46:07.83
IV.MSAG.HHN. ML:1.0 0.0001215 0.44 AML other m 2021-04-16T07:46:09.61
IV.MSAG.HNN. ML:1.4 0.00028731165 0.4224 AML other m 2021-04-16T07:46:09.83
IV.MSAG.HNE. ML:1.1 0.0001547807 1.3024 AML other m 2021-04-16T07:46:12.23
IV.MSAG.HHE. ML:0.7 0.00005945 1.28 AML other m 2021-04-16T07:46:12.23
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