Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 11-07-2021 and time 00:26:36 (UTC) in region 7 km SE Apricena (FG)

A magnitude ML 1.3 earthquake occured in region: 7 km SE Apricena (FG), on

  • 11-07-2021 00:26:36 (UTC)
  • 11-07-2021 02:26:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7460, 15.5030 at 23 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Apricena FG 7 13328 13328
Rignano Garganico FG 10 2117 15445
San Nicandro Garganico FG 12 15566 31011
San Marco in Lamis FG 12 13831 44842
San Severo FG 12 53905 98747
Poggio Imperiale FG 14 2724 101471
Lesina FG 18 6410 107881
Torremaggiore FG 19 17311 125192
San Giovanni Rotondo FG 19 27184 152376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NE of San Severo (53905 inhabitants)
32 Km N of Foggia (151991 inhabitants)
37 Km W of Manfredonia (57279 inhabitants)
63 Km NW of Cerignola (58396 inhabitants)
80 Km NW of Barletta (94814 inhabitants)
88 Km NW of Andria (100440 inhabitants)
91 Km NE of Benevento (60091 inhabitants)
92 Km NW of Trani (56217 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 2021-07-11
00:26:36		 41.746 15.5033 23 2021-12-29
11:12:11		 Bollettino Sismico Italiano INGV 92778861
Reviewed
Rev100 		ML 1.3 2021-07-11
00:26:35		 41.7468 15.4937 23 2021-07-11
00:47:59		 Sala Sismica INGV-Roma 92593511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-11 00:26:36 ± 0.07
Latitude 41.7460 ± 0.0054
Longitude 15.5033 ± 0.0024
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92778861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 553
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.50092
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 92778861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-15 08:01:18

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 92593511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-11 00:47:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CIGN.HHN. 2021-07-11T00:26:52.28 0.6 undecidable manual S 259 50.616 107 -0.29 43
IV.MOCO.HNE. 2021-07-11T00:26:52.93 0.1 undecidable manual S 215 50.616 107 0.36 86
OT.OT14.EHN. 2021-07-11T00:26:49.51 0.3 undecidable manual S 63 37.3293 114 0.27 67
OT.OT12.EHZ. 2021-07-11T00:26:48.68 0.3 undecidable manual S 111 35.8419 115 -0.19 68
IV.MSAG.HNE. 2021-07-11T00:26:48.38 0.3 undecidable manual S 96 33.8439 117 -0.02 71
IV.MELA.HHZ. 2021-07-11T00:26:47.93 0.3 undecidable manual S 262 31.4463 119 0.09 70
OT.OT11.EHZ. 2021-07-11T00:26:47.55 0.6 undecidable manual S 209 29.2485 121 0.23 46
OT.OT16.EHZ. 2021-07-11T00:26:47.22 0.3 undecidable manual S 290 29.2485 121 -0.1 71
IV.GATE.HNN. 2021-07-11T00:26:46.65 0.3 undecidable manual P 242 55.5999 105 0.29 65
IV.MOCO.HNE. 2021-07-11T00:26:45.70 0.1 undecidable manual P 215 50.616 107 0.07 91
IV.CIGN.HHN. 2021-07-11T00:26:45.91 0.3 undecidable manual P 259 50.616 107 0.29 65
IV.SGRT.HHZ. 2021-07-11T00:26:45.41 0.3 undecidable manual S 87 19.869 133 0.09 72
OT.OT07.EHZ. 2021-07-11T00:26:45.72 0.3 undecidable manual S 128 22.6551 129 -0.15 70
IV.TREM.HHN. 2021-07-11T00:26:44.17 0.6 undecidable manual P 1 41.8248 111 -0.17 46
OT.OT03.EHZ. 2021-07-11T00:26:44.18 0.1 undecidable manual S 107 12.6762 147 0.1 97
OT.OT14.EHN. 2021-07-11T00:26:43.78 0.6 undecidable manual P 63 37.3293 114 0.08 46
IV.APRC.HHZ. 2021-07-11T00:26:43.33 0.3 undecidable manual S 69 3.4965 170 0.15 73
IV.MSAG.HNE. 2021-07-11T00:26:43.25 0.6 undecidable manual P 96 33.8439 117 0.03 47
OT.OT12.EHZ. 2021-07-11T00:26:43.53 0.6 undecidable manual P 111 35.8419 115 0.04 47
OT.OT05.EHZ. 2021-07-11T00:26:43.99 0.3 undecidable manual S 140 12.6762 147 -0.09 72
OT.OT06.EHZ. 2021-07-11T00:26:43.79 0.3 undecidable manual S 132 10.0788 153 0.05 74
OT.OT04.EHZ. 2021-07-11T00:26:43.38 0.3 undecidable manual S 115 7.0929 161 -0.03 74
OT.OT16.EHZ. 2021-07-11T00:26:42.28 0.3 undecidable manual P 290 29.2485 121 -0.31 68
IV.MELA.HHZ. 2021-07-11T00:26:42.63 0.3 undecidable manual P 262 31.4463 119 -0.26 68
OT.OT11.EHZ. 2021-07-11T00:26:42.31 0.1 undecidable manual P 209 29.2485 121 -0.28 90
IV.SGRT.HHZ. 2021-07-11T00:26:41.59 0.1 positive manual P 87 19.869 133 0.15 94
OT.OT07.EHZ. 2021-07-11T00:26:41.59 0.3 undecidable manual P 128 22.6551 129 -0.17 70
OT.OT03.EHZ. 2021-07-11T00:26:40.77 0.1 undecidable manual P 107 12.6762 147 0.05 98
IV.APRC.HHZ. 2021-07-11T00:26:40.18 0.1 undecidable manual P 69 3.4965 170 -0.02 100
OT.OT05.EHZ. 2021-07-11T00:26:40.59 0.1 positive manual P 140 12.6762 147 -0.13 96
OT.OT06.EHZ. 2021-07-11T00:26:40.45 0.3 undecidable manual P 132 10.0788 153 -0.07 73
OT.OT04.EHZ. 2021-07-11T00:26:40.26 0.1 undecidable manual P 115 7.0929 161 -0.08 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.HHN. ML:1.3 0.0001495 1.12 AML other m 2021-07-11T00:26:43.26
IV.APRC.HHE. ML:1.2 0.0000989 1.48 AML other m 2021-07-11T00:26:43.82
OT.OT05.EHN. ML:1.1 0.00008130000000000001 0.52 AML other m 2021-07-11T00:26:44.42
OT.OT05.EHE. ML:1.5 0.000187 0.1 AML other m 2021-07-11T00:26:44.48
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