Earthquake (quarry blast) with magnitude of ML 1.4 on date 04-09-2020 and time 13:52:44 (Italy) in region 11 km S San Giovanni Rotondo (FG)

A magnitude ML 1.4 (quarry blast) earthquake occured in region: 11 km S San Giovanni Rotondo (FG), on

  • 04-09-2020 11:52:44 (UTC)
  • 04-09-2020 13:52:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6120, 15.7020 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
San Giovanni Rotondo FG 11 27184 27184
Rignano Garganico FG 12 2117 29301
San Marco in Lamis FG 13 13831 43132
Manfredonia FG 18 57279 100411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Manfredonia (57279 inhabitants)
21 Km NE of Foggia (151991 inhabitants)
28 Km E of San Severo (53905 inhabitants)
42 Km NW of Cerignola (58396 inhabitants)
58 Km NW of Barletta (94814 inhabitants)
65 Km NW of Andria (100440 inhabitants)
70 Km NW of Trani (56217 inhabitants)
78 Km NW of Bisceglie (55422 inhabitants)
88 Km NW of Molfetta (59874 inhabitants)
94 Km NE of Benevento (60091 inhabitants)
100 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 1.4 2020-09-04
11:52:44
41.6115 15.7023 1 2021-02-26
14:56:05
Bollettino Sismico Italiano INGV 84688811
Reviewed
Rev100
ML 1.5 2020-09-04
11:52:43
41.6292 15.6938 11 2020-09-04
12:21:34
Sala Sismica INGV-Roma 82618711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-04 11:52:44 ± 0.32
Latitude 41.6115 ± 0.0189
Longitude 15.7023 ± 0.0072
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 84688811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2100
Semi-minor axis of confidence ellipse (meter) 590
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 360
Circular confidence region, given by single value of horizontal uncertainty (meter) 2100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 246
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18796
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 84688811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-23 11:05:54

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82618711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-04 12:21:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VARE.HHZ. 2020-09-04T11:54:27.35 3.0 positive manual Pn 11.93 0
IV.PE3.EHZ. 2020-09-04T11:54:23.21 3.0 undecidable manual Sg 19.02 0
IV.ISPIC.HNZ. 2020-09-04T11:54:07.54 3.0 negative manual Pg 13.11 0
IV.AGLI.HHZ. 2020-09-04T11:54:07.22 3.0 undecidable manual Pg 13.88 0
IV.JOPP.HHZ. 2020-09-04T11:54:07.80 3.0 undecidable manual Sn 2.08 0
IV.BRSN.EHZ. 2020-09-04T11:53:51.27 3.0 positive manual Pg 14.49 0
IV.PETRA.HHZ. 2020-09-04T11:53:48.89 3.0 positive manual Pg 7.06 0
IV.RCAV.EHZ. 2020-09-04T11:53:44.93 3.0 undecidable manual Sg 6.48 0
IV.RIBO.EHZ.01 2020-09-04T11:53:36.34 3.0 negative manual Pn 0.37 0
IV.MURB.HHZ. 2020-09-04T11:53:35.28 3.0 undecidable manual Pg 10.8 0
IV.VBKN.HHZ. 2020-09-04T11:53:19.27 3.0 undecidable manual Sg -0.74 0
IV.PTRJ.HHZ. 2020-09-04T11:52:59.17 3.0 undecidable manual P 0.75 0
IV.ROSPO.HHZ. 2020-09-04T11:52:56.43 3.0 undecidable manual P -0.28 0
IV.MSAG.HHZ. 2020-09-04T11:52:48.45 0.1 positive manual P 57 20.4684 91 -0.02 99
IV.APRC.HHZ. 2020-09-04T11:52:48.24 0.1 undecidable manual P 321 20.868 91 -0.31 93
OT.OT04.EHE. 2020-09-04T11:52:47.48 0.3 undecidable manual P 320 15.6732 92 -0.03 75
IV.SGRT.HHZ. 2020-09-04T11:52:47.65 0.1 positive manual P 12 16.2726 92 0.03 100
OT.OT03.EHE. 2020-09-04T11:52:46.89 0.1 undecidable manual P 339 11.9769 92 0.12 99
OT.OT05.EHZ. 2020-09-04T11:52:46.41 0.1 positive manual P 303 9.7791 93 0.07 100
OT.OT06.EHZ. 2020-09-04T11:52:46.91 0.1 positive manual P 313 12.1767 92 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHN. ML:1.4 0.0002695 0.7 AML other m 2020-09-04T11:52:51.28
IV.MSAG.HHN. ML:1.4 0.00019 0.16 AML other m 2020-09-04T11:52:52.54
IV.MSAG.HHE. ML:1.2 0.000124 0.36 AML other m 2020-09-04T11:52:52.87
IV.APRC.HHE. ML:1.4 0.00020050000000000002 0.98 AML other m 2020-09-04T11:52:53.77
IV.SGRT.HHE. ML:1.3 0.000224 0.56 AML other m 2020-09-04T11:52:54.29
IV.APRC.HHN. ML:1.5 0.000255 0.22 AML other m 2020-09-04T11:52:54.64
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