Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 15-07-2021 and time 13:42:56 (Italy) in region 12 km S San Giovanni Rotondo (FG)

A magnitude ML 1.1 earthquake occured in region: 12 km S San Giovanni Rotondo (FG), on

  • 15-07-2021 11:42:56 (UTC)
  • 15-07-2021 13:42:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6040, 15.7610 at 19 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
San Giovanni Rotondo FG 12 27184 27184
Manfredonia FG 14 57279 84463
San Marco in Lamis FG 16 13831 98294
Rignano Garganico FG 17 2117 100411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km W of Manfredonia (57279 inhabitants)
24 Km NE of Foggia (151991 inhabitants)
33 Km E of San Severo (53905 inhabitants)
39 Km NW of Cerignola (58396 inhabitants)
53 Km NW of Barletta (94814 inhabitants)
61 Km NW of Andria (100440 inhabitants)
66 Km NW of Trani (56217 inhabitants)
74 Km NW of Bisceglie (55422 inhabitants)
83 Km NW of Molfetta (59874 inhabitants)
95 Km NW of Bitonto (55540 inhabitants)
97 Km NE of Benevento (60091 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 1.1 2021-07-15
11:42:56		 41.604 15.7608 19 2021-12-29
11:12:51		 Bollettino Sismico Italiano INGV 97343301
Reviewed
Rev100 		ML 1.1 2021-07-15
11:42:56		 41.5985 15.7573 19 2021-07-15
11:53:19		 Sala Sismica INGV-Roma 92784291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-15 11:42:56 ± 0.08
Latitude 41.6040 ± 0.0027
Longitude 15.7608 ± 0.0036
Depth (km) 19 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97343301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 311
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 219
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 92784291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-15 11:53:19

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 97343301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-08 16:11:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MARS.HHZ. 2021-07-15T11:44:33.99 3.0 undecidable manual Sn 2.44 0
IV.PCN.EHZ. 2021-07-15T11:44:31.15 3.0 positive manual Pg 23.110001 0
TV.SU26.HHZ. 2021-07-15T11:44:25.80 3.0 undecidable manual Pg 18.32 0
ST.RONC.EHZ. 2021-07-15T11:44:16.41 3.0 undecidable manual Pn 5.37 0
IV.PLLN.EHZ. 2021-07-15T11:44:09.84 3.0 undecidable manual Sn -1.9 0
IV.HPAC.HHZ. 2021-07-15T11:44:05.62 3.0 negative manual Pg 19.76 0
RD.PGF.BHZ. 2021-07-15T11:44:05.12 3.0 undecidable manual Pn 6.1 0
MN.KLV.HHZ. 2021-07-15T11:44:02.17 3.0 undecidable manual Pn -1.85 0
IV.EL6.EHZ. 2021-07-15T11:44:02.74 3.0 undecidable manual Sn -3.21 0
GU.GSCL.HHZ. 2021-07-15T11:44:02.35 3.0 undecidable manual Pn 6.64 0
IV.SRES.HHZ. 2021-07-15T11:43:59.65 3.0 undecidable manual Sn 0.44 0
IV.MARS.HHZ. 2021-07-15T11:43:50.98 3.0 positive manual Pn 8 0
IV.MTGR.HHZ. 2021-07-15T11:43:38.03 3.0 undecidable manual Pn -2.22 0
IV.CIMA.HNZ. 2021-07-15T11:43:36.63 3.0 undecidable manual Pg 11.72 0
IV.LNSS.HHZ. 2021-07-15T11:43:22.70 3.0 undecidable manual Pn -0.07 0
IT.AVL.HNZ. 2021-07-15T11:43:19.30 3.0 undecidable manual Sn 0.36 0
CR.STON.BHZ. 2021-07-15T11:43:16.22 3.0 undecidable manual Pn -2.35 0
IV.CAR1.HNZ. 2021-07-15T11:43:13.10 3.0 undecidable manual Pn 0.51 0
OT.OT14.EHZ. 2021-07-15T11:43:08.26 0.6 undecidable manual S 20 34.6431 109 -0.11 47
IV.APRC.HHN. 2021-07-15T11:43:06.05 0.3 undecidable manual S 313 24.753 119 0.08 72
OT.OT06.EHE. 2021-07-15T11:43:04.16 0.3 undecidable manual S 303 16.4724 132 0 74
IV.SGRT.HHZ. 2021-07-15T11:43:04.24 0.3 undecidable manual S 355 16.7721 132 0.03 73
IV.MSAG.HHZ. 2021-07-15T11:43:04.48 0.3 undecidable manual S 46 17.1717 131 0.18 71
OT.OT04.EHE. 2021-07-15T11:43:04.76 0.6 undecidable manual S 311 19.6692 127 -0.05 48
OT.OT14.EHZ. 2021-07-15T11:43:03.26 0.3 undecidable manual P 20 34.6431 109 0 71
OT.OT12.EHZ. 2021-07-15T11:43:03.24 0.3 undecidable manual S 76 12.5763 141 -0.2 71
OT.OT05.EHZ. 2021-07-15T11:43:03.65 0.3 undecidable manual S 295 14.4744 137 -0.13 72
OT.OT03.EHE. 2021-07-15T11:43:03.92 0.3 undecidable manual S 323 15.1737 135 0.03 74
OT.OT07.EHE. 2021-07-15T11:43:02.43 0.3 undecidable manual S 299 3.8961 167 0.01 75
IV.MSAG.HHZ. 2021-07-15T11:43:01.06 0.1 undecidable manual P 46 17.1717 131 0.15 95
OT.OT04.EHE. 2021-07-15T11:43:01.20 0.3 undecidable manual P 311 19.6692 127 -0.01 73
IV.CDRU.HHZ. 2021-07-15T11:43:01.38 3.0 undecidable manual P 0.19 0
IV.APRC.HHN. 2021-07-15T11:43:01.85 0.1 undecidable manual P 313 24.753 119 -0.02 96
OT.OT05.EHZ. 2021-07-15T11:43:00.48 0.1 undecidable manual P 295 14.4744 137 -0.13 96
OT.OT03.EHE. 2021-07-15T11:43:00.75 0.3 undecidable manual P 323 15.1737 135 0.07 73
OT.OT06.EHE. 2021-07-15T11:43:00.84 0.1 undecidable manual P 303 16.4724 132 0.01 98
OT.OT12.EHZ. 2021-07-15T11:43:00.34 0.3 undecidable manual P 76 12.5763 141 -0.08 73
IV.SGRT.HHZ. 2021-07-15T11:43:00.91 0.1 undecidable manual P 355 16.7721 132 0.05 97
OT.OT07.EHE. 2021-07-15T11:42:59.84 0.1 undecidable manual P 299 3.8961 167 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT05.EHE. ML:1.0 0.0000661 1.56 AML other m 2021-07-15T11:43:04.08
IV.MSAG.HNE. ML:1.0 0.000054584965 0.096 AML other m 2021-07-15T11:43:04.58
IV.SGRT.HHN. ML:1.3 0.00011825 0.14 AML other m 2021-07-15T11:43:04.54
IV.SGRT.HHE. ML:1.2 0.0001125 0.26 AML other m 2021-07-15T11:43:04.57
IV.MSAG.HNN. ML:1.4 0.00016289900000000001 0.1984 AML other m 2021-07-15T11:43:05.02
IV.MSAG.HHN. ML:1.1 0.0000755 0.76 AML other m 2021-07-15T11:43:05.02
IV.MSAG.HHE. ML:0.7 0.0000308 1.1 AML other m 2021-07-15T11:43:05.58
OT.OT05.EHN. ML:0.8 0.00004239302 0.9632 AML other m 2021-07-15T11:43:05.72
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