Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 21-04-2021 and time 18:09:07 (Italy) in region Costa Garganica (Foggia)

A magnitude ML 2.2 earthquake occured in region: Costa Garganica (Foggia), on

  • 21-04-2021 16:09:07 (UTC)
  • 21-04-2021 18:09:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9490, 15.7820 at 25 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
Rodi Garganico FG 9 3693 3693
Ischitella FG 11 4432 8125
Carpino FG 13 4182 12307
Cagnano Varano FG 13 7330 19637
Vico del Gargano FG 16 7766 27403
Peschici FG 19 4521 31924

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Manfredonia (57279 inhabitants)
44 Km NE of San Severo (53905 inhabitants)
58 Km NE of Foggia (151991 inhabitants)
77 Km N of Cerignola (58396 inhabitants)
81 Km NW of Barletta (94814 inhabitants)
91 Km NW of Andria (100440 inhabitants)
92 Km NW of Trani (56217 inhabitants)
99 Km NW of Bisceglie (55422 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 2.2 2021-04-21
16:09:07		 41.9492 15.7823 25 2021-07-12
16:55:11		 Bollettino Sismico Italiano INGV 90229691
Reviewed
Rev100 		ML 2.3 2021-04-21
16:09:07		 41.9555 15.7885 25 2021-04-21
16:16:13		 Sala Sismica INGV-Roma 89333931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-21 16:09:07 ± 0.16
Latitude 41.9492 ± 0.0063
Longitude 15.7823 ± 0.0085
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90229691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 730
Semi-minor axis of confidence ellipse (meter) 271
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.50636
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 89333931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-21 16:16:13

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 90229691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-18 16:21:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2021-04-21T16:11:03.06 3.0 undecidable manual Sg 14.73 0
CR.ZAG.BHZ. 2021-04-21T16:11:00.34 3.0 undecidable manual Sg 11.99 0
IV.ESCV.HHZ. 2021-04-21T16:10:52.52 3.0 undecidable manual Sn -6.12 0
IV.ZEN8.EHZ. 2021-04-21T16:10:42.26 3.0 undecidable manual Pg 20.24 0
IV.CRTC.HHZ. 2021-04-21T16:10:37.07 3.0 undecidable manual Sg 14.83 0
ST.OZOL.EHZ. 2021-04-21T16:10:35.08 3.0 undecidable manual Pn 7.43 0
ST.CARE.EHZ. 2021-04-21T16:10:32.59 3.0 undecidable manual Pn 2.53 0
MN.TRI.HHZ. 2021-04-21T16:10:16.80 3.0 positive manual Pg 10.78 0
IV.HAGA.HHZ. 2021-04-21T16:10:15.27 3.0 undecidable manual Pn -0.18 0
IV.FIR.HHZ. 2021-04-21T16:10:13.06 3.0 undecidable manual Pg 10.15 0
IV.CAGR.HHZ. 2021-04-21T16:10:10.84 3.0 undecidable manual Pn -1.17 0
IV.SFI.EHZ. 2021-04-21T16:09:58.64 3.0 undecidable manual Pn -0.04 0
AC.VLO.HHZ. 2021-04-21T16:09:57.71 3.0 undecidable manual Pn 3.21 0
TV.SF01.EHZ. 2021-04-21T16:09:55.89 3.0 undecidable manual Pn 0.51 0
IV.MMN.HHZ. 2021-04-21T16:09:43.63 3.0 positive manual Pg 4.16 0
IV.MRVN.HHZ. 2021-04-21T16:09:38.91 0.3 undecidable manual S 161 104.3178 98 0.66 55
IV.NOCI.HHZ. 2021-04-21T16:09:32.04 0.6 undecidable manual P 140 167.2104 54 -1.83 14
IV.MELA.HHZ. 2021-04-21T16:09:27.73 0.1 undecidable manual S 244 60.495 106 0.94 70
IV.MRVN.HHZ. 2021-04-21T16:09:25.26 0.1 undecidable manual P 161 104.3178 98 -0.06 83
OT.OT07.EHE. 2021-04-21T16:09:20.62 0.6 undecidable manual S 188 36.741 117 -0.23 46
OT.OT13.EHZ. 2021-04-21T16:09:20.00 0.3 undecidable manual S 103 33.6441 120 -0.13 70
OT.OT12.EHZ. 2021-04-21T16:09:20.69 0.1 undecidable manual S 164 36.741 117 -0.15 93
OT.OT04.EHE. 2021-04-21T16:09:19.09 0.6 undecidable manual S 213 30.4473 123 -0.31 46
OT.OT05.EHZ. 2021-04-21T16:09:19.98 0.1 undecidable manual S 205 35.4423 118 -0.57 85
IV.TREM.HHZ. 2021-04-21T16:09:19.04 0.3 undecidable manual S 311 29.5482 124 -0.17 71
IV.MSAG.HHZ. 2021-04-21T16:09:19.17 0.1 undecidable manual S 158 28.3494 125 0.24 94
OT.OT06.EHZ. 2021-04-21T16:09:19.97 0.3 undecidable manual S 208 33.1446 120 -0.04 72
IV.APRC.HHZ. 2021-04-21T16:09:19.05 0.3 undecidable manual S 223 29.0487 124 -0.04 73
IV.MELA.HHZ. 2021-04-21T16:09:18.91 0.3 positive manual P 244 60.495 106 0.2 67
OT.OT03.EHE. 2021-04-21T16:09:18.84 0.3 undecidable manual S 203 28.4493 125 -0.12 72
IV.SGRT.HHZ. 2021-04-21T16:09:17.65 0.3 undecidable manual S 188 21.867 133 0.07 73
OT.OT14.EHZ. 2021-04-21T16:09:16.01 0.3 undecidable manual S 120 11.7771 151 0.07 74
OT.OT12.EHZ. 2021-04-21T16:09:15.17 0.1 negative manual P 164 36.741 117 -0.1 94
OT.OT07.EHE. 2021-04-21T16:09:15.14 0.1 undecidable manual P 188 36.741 117 -0.14 93
IV.MSAG.HHZ. 2021-04-21T16:09:14.27 0.1 negative manual P 158 28.3494 125 0.1 97
OT.OT06.EHZ. 2021-04-21T16:09:14.94 0.1 undecidable manual P 208 33.1446 120 0.15 95
IV.APRC.HHZ. 2021-04-21T16:09:14.36 0.1 positive manual P 223 29.0487 124 0.1 96
OT.OT04.EHE. 2021-04-21T16:09:14.50 0.1 undecidable manual P 213 30.4473 123 0.06 97
OT.OT05.EHZ. 2021-04-21T16:09:14.80 0.1 undecidable manual P 205 35.4423 118 -0.3 90
IV.TREM.HHZ. 2021-04-21T16:09:14.17 0.1 undecidable manual P 311 29.5482 124 -0.16 94
OT.OT13.EHZ. 2021-04-21T16:09:14.84 0.1 negative manual P 103 33.6441 120 -0.02 95
OT.OT03.EHE. 2021-04-21T16:09:14.32 0.1 undecidable manual P 203 28.4493 125 0.13 96
IV.SGRT.HHZ. 2021-04-21T16:09:13.57 0.1 negative manual P 188 21.867 133 0.18 96
OT.OT14.EHZ. 2021-04-21T16:09:12.52 0.1 negative manual P 120 11.7771 151 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHE. ML:2.4 0.0010615000000000002 0.26 AML other m 2021-04-21T16:09:18.28
IV.SGRT.HHN. ML:2.4 0.001165 1.08 AML other m 2021-04-21T16:09:19.58
IV.TREM.HHE. ML:2.1 0.000456 0.22 AML other m 2021-04-21T16:09:19.28
IV.APRC.HHE. ML:2.4 0.0009485 0.24 AML other m 2021-04-21T16:09:19.36
IV.TREM.HHN. ML:2.2 0.000558 0.46 AML other m 2021-04-21T16:09:19.45
IV.MSAG.HHE. ML:2.0 0.00038700000000000003 0.72 AML other m 2021-04-21T16:09:19.80
IV.MSAG.HNE. ML:2.4 0.0009665 0.72 AML other m 2021-04-21T16:09:19.80
IV.MSAG.HHN. ML:2.1 0.0005005 0.2 AML other m 2021-04-21T16:09:20.28
IV.MSAG.HNN. ML:2.4 0.001145 0.2 AML other m 2021-04-21T16:09:20.28
OT.OT13.EHE. ML:2.5 0.00115 1.32 AML other m 2021-04-21T16:09:20.85
OT.OT05.EHN. ML:2.2 0.00046600000000000005 1.5 AML other m 2021-04-21T16:09:20.19
OT.OT05.EHE. ML:2.2 0.0005290000000000001 0.64 AML other m 2021-04-21T16:09:20.97
IV.APRC.HHN. ML:2.5 0.0011149999999999999 0.16 AML other m 2021-04-21T16:09:21.40
OT.OT13.EHN. ML:2.8 0.00236 0.28 AML other m 2021-04-21T16:09:21.47
OT.OT12.EHN. ML:2.3 0.0006779999999999999 0.4 AML other m 2021-04-21T16:09:21.47
OT.OT12.EHE. ML:2.4 0.0007589999999999999 0.3 AML other m 2021-04-21T16:09:21.56
IV.MELA.HHE. ML:2.3 0.00040649999999999996 1.82 AML other m 2021-04-21T16:09:27.07
IV.MELA.HHN. ML:2.2 0.00028000000000000003 0.84 AML other m 2021-04-21T16:09:28.03
IV.MRVN.HHN. ML:1.8 0.0000576 1.26 AML other m 2021-04-21T16:09:42.69
IV.MRVN.HHE. ML:1.8 0.00004815 0.64 AML other m 2021-04-21T16:09:43.33
IV.AMUR.HHE. ML:2.0 0.000054900000000000006 0.42 AML other m 2021-04-21T16:09:49.33
IV.AMUR.HHN. ML:2.0 0.0000543 1.3 AML other m 2021-04-21T16:09:51.71
IV.NOCI.HHN. ML:2.2 0.0000712 0.96 AML other m 2021-04-21T16:09:59.35
IV.NOCI.HHE. ML:2.2 0.00006215 1.58 AML other m 2021-04-21T16:10:00.99
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
Waveforms Seismic signals in miniseed + resp format Download