Earthquake (quarry blast) with magnitude of ML 0.6 on date 23-06-2021 and time 12:13:00 (Italy) in region 10 km W Manfredonia (FG)

A magnitude ML 0.6 (quarry blast) earthquake occured in region: 10 km W Manfredonia (FG), on

  • 23-06-2021 10:13:00 (UTC)
  • 23-06-2021 12:13:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6280, 15.8020 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 11 27184 84463
Monte Sant'Angelo FG 16 12657 97120
San Marco in Lamis FG 17 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)
28 Km NE of Foggia (151991 inhabitants)
36 Km E of San Severo (53905 inhabitants)
41 Km N of Cerignola (58396 inhabitants)
52 Km NW of Barletta (94814 inhabitants)
61 Km NW of Andria (100440 inhabitants)
65 Km NW of Trani (56217 inhabitants)
73 Km NW of Bisceglie (55422 inhabitants)
82 Km NW of Molfetta (59874 inhabitants)
94 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 0.6 2021-06-23
10:13:00
41.6285 15.8018 1 2021-12-29
11:12:41
Bollettino Sismico Italiano INGV 97074491
Reviewed
Rev100
ML 0.7 2021-06-23
10:13:00
41.6225 15.8002 10 2021-06-23
10:21:50
Sala Sismica INGV-Roma 91762951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-23 10:13:00 ± 0.1
Latitude 41.6285 ± 0.0072
Longitude 15.8018 ± 0.0048
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 97074491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18886
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 91762951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-23 10:21:50

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 97074491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-29 21:50:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTMR.EHZ. 2021-06-23T10:13:20.44 3.0 undecidable manual P 0 0
OT.OT04.EHZ. 2021-06-23T10:13:04.40 0.3 undecidable manual P 299 20.9679 91 -0.19 72
OT.OT03.EHZ. 2021-06-23T10:13:03.49 0.3 undecidable manual P 306 15.6732 92 -0.04 75
IV.MSAG.HHZ. 2021-06-23T10:13:03.08 0.1 undecidable manual P 44 12.876 92 0.11 99
IV.SGRT.HHZ. 2021-06-23T10:13:03.38 0.1 undecidable manual P 341 14.7741 92 0.02 100
OT.OT12.EHZ. 2021-06-23T10:13:02.04 0.3 undecidable manual P 88 8.7801 93 -0.12 74
OT.OT07.EHZ. 2021-06-23T10:13:01.89 0.1 undecidable manual P 263 6.8931 94 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HHE. ML:0.2 0.000021495315000000002 0.1152 AML other m 2021-06-23T10:13:06.44
IV.SGRT.HHE. ML:0.8 0.00008374999999999999 0.14 AML other m 2021-06-23T10:13:06.65
IV.MSAG.HHN. ML:0.4 0.00003376847 0.1408 AML other m 2021-06-23T10:13:06.66
IV.SGRT.HHN. ML:0.8 0.0000872 0.4 AML other m 2021-06-23T10:13:06.88
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