Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 25-05-2021 and time 01:32:43 (Italy) in region Costa Garganica (Foggia)

A magnitude ML 1.9 earthquake occured in region: Costa Garganica (Foggia), on

  • 24-05-2021 23:32:43 (UTC)
  • 25-05-2021 01:32:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9750, 15.4520 at 11 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
Lesina FG 15 6410 6410
Isole Tremiti FG 17 469 6879
San Nicandro Garganico FG 18 15566 22445
Poggio Imperiale FG 18 2724 25169

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of San Severo (53905 inhabitants)
55 Km NW of Manfredonia (57279 inhabitants)
57 Km N of Foggia (151991 inhabitants)
87 Km NW of Cerignola (58396 inhabitants)
100 Km NW of Barletta (94814 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 1.9 2021-05-24
23:32:43		 41.9747 15.4517 11 2021-12-29
11:12:13		 Bollettino Sismico Italiano INGV 93105511
Reviewed
Rev100 		ML 2.1 2021-05-24
23:32:43		 41.9802 15.4528 10 2021-05-24
23:40:36		 Sala Sismica INGV-Roma 90466071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-24 23:32:43 ± 0.15
Latitude 41.9747 ± 0.0072
Longitude 15.4517 ± 0.0060
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93105511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 840
Semi-minor axis of confidence ellipse (meter) 187
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.22753
Epicentral distance of station farthest from the epicenter (degree) 1.55763
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 93105511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-09 11:03:31

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 90466071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-24 23:40:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIGL.HHZ. 2021-05-24T23:33:12.34 0.3 undecidable manual P 151 172.8936 50 0.98 38
IV.INTR.HHZ. 2021-05-24T23:33:04.10 0.3 undecidable manual P 272 127.5723 50 -0.28 58
IV.MRVN.HHZ. 2021-05-24T23:33:02.94 0.6 undecidable manual P 148 118.6923 50 -0.08 42
OT.OT11.EHZ. 2021-05-24T23:33:00.08 0.6 undecidable manual S 191 51.9036 50 0.42 44
IV.LPEL.HHZ. 2021-05-24T23:33:00.85 0.3 undecidable manual P 275 104.8173 50 -0.03 64
IV.CIGN.HHZ. 2021-05-24T23:33:00.90 0.3 undecidable manual S 232 57.498 50 -0.24 67
OT.OT12.EHZ. 2021-05-24T23:32:59.87 0.6 undecidable manual S 135 53.6019 50 -0.22 47
IV.MSAG.HHZ. 2021-05-24T23:32:59.01 0.6 undecidable manual S 127 47.7189 50 0.47 44
IV.MELA.HHZ. 2021-05-24T23:32:57.12 0.6 undecidable manual S 222 40.1265 50 0.62 44
IT.GLNS.HNN. 2021-05-24T23:32:57.72 0.6 undecidable manual S 261 44.5221 50 0.03 47
OT.OT07.EHE. 2021-05-24T23:32:57.31 0.3 undecidable manual S 150 45.0216 50 -0.49 67
OT.OT14.EHZ. 2021-05-24T23:32:56.64 0.6 undecidable manual S 103 38.5281 50 0.56 44
OT.OT03.EHE. 2021-05-24T23:32:55.01 0.3 undecidable manual S 151 33.3444 50 0.3 70
OT.OT05.EHZ. 2021-05-24T23:32:55.69 0.3 undecidable manual S 160 37.1295 50 -0.02 74
IV.SGRT.HHZ. 2021-05-24T23:32:55.02 0.6 undecidable manual S 135 34.3434 50 0.07 49
OT.OT16.EHZ. 2021-05-24T23:32:54.11 0.6 undecidable manual S 236 27.9498 50 0.86 41
OT.OT06.EHZ. 2021-05-24T23:32:54.87 0.3 undecidable manual S 160 34.1436 50 -0.04 75
IV.CIGN.HHZ. 2021-05-24T23:32:53.64 0.3 undecidable manual P 232 57.498 50 0.06 71
OT.OT04.EHE. 2021-05-24T23:32:53.84 0.3 undecidable manual S 159 30.2475 50 -0.02 75
IV.MSAG.HHZ. 2021-05-24T23:32:52.10 0.3 undecidable manual P 127 47.7189 50 0.02 72
OT.OT11.EHZ. 2021-05-24T23:32:52.58 0.3 undecidable manual P 191 51.9036 50 -0.14 71
OT.OT12.EHZ. 2021-05-24T23:32:52.75 0.1 negative manual P 135 53.6019 50 -0.22 93
IV.APRC.HHZ. 2021-05-24T23:32:52.90 0.6 undecidable manual S 163 25.2525 50 0.37 43
OT.OT07.EHE. 2021-05-24T23:32:51.28 0.1 positive manual P 150 45.0216 50 -0.37 92
OT.OT14.EHZ. 2021-05-24T23:32:51.07 0.6 undecidable manual P 103 38.5281 50 0.41 45
IT.GLNS.HNN. 2021-05-24T23:32:51.83 0.3 undecidable manual P 261 44.5221 50 0.24 71
IV.SGRT.HHZ. 2021-05-24T23:32:50.14 0.1 undecidable manual P 135 34.3434 50 0.14 96
IV.MELA.HHZ. 2021-05-24T23:32:50.84 0.1 undecidable manual P 222 40.1265 50 -0.05 98
OT.OT05.EHZ. 2021-05-24T23:32:50.06 0.1 undecidable manual P 160 37.1295 50 -0.38 93
OT.OT04.EHE. 2021-05-24T23:32:49.22 0.1 positive manual P 159 30.2475 50 -0.16 99
OT.OT03.EHE. 2021-05-24T23:32:49.79 0.1 positive manual P 151 33.3444 50 -0.08 100
OT.OT16.EHZ. 2021-05-24T23:32:49.13 0.1 undecidable manual P 236 27.9498 50 0.11 99
OT.OT06.EHZ. 2021-05-24T23:32:49.85 0.1 positive manual P 160 34.1436 50 -0.13 99
IV.APRC.HHZ. 2021-05-24T23:32:48.77 0.1 positive manual P 163 25.2525 50 0.16 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.HHE. ML:1.8 0.0003876079 0.1024 AML other m 2021-05-24T23:32:53.65
IV.APRC.HNE. ML:1.8 0.00037076365 0.1024 AML other m 2021-05-24T23:32:53.66
IV.APRC.HHN. ML:2.0 0.000672 0.12 AML other m 2021-05-24T23:32:53.69
OT.OT16.EHE. ML:2.2 0.00078918815 0.5248 AML other m 2021-05-24T23:32:54.18
OT.OT16.EHN. ML:2.0 0.0005196829499999999 0.9344 AML other m 2021-05-24T23:32:54.78
IV.SGRT.HHN. ML:2.2 0.000647 0.22 AML other m 2021-05-24T23:32:55.80
IV.SGRT.HHE. ML:2.0 0.0004435 0.16 AML other m 2021-05-24T23:32:56.47
OT.OT05.EHN. ML:1.9 0.0002878614 0.2176 AML other m 2021-05-24T23:32:56.86
OT.OT05.EHE. ML:1.8 0.0002221988 0.1024 AML other m 2021-05-24T23:32:57.24
IV.MELA.HNN. ML:2.1 0.0004429999999999999 0.24 AML other m 2021-05-24T23:32:57.44
IV.MELA.HHN. ML:2.2 0.0005155000000000001 0.24 AML other m 2021-05-24T23:32:57.44
IV.MELA.HHE. ML:2.4 0.000852 0.24 AML other m 2021-05-24T23:32:57.46
IV.MELA.HNE. ML:2.4 0.0008169999999999999 0.24 AML other m 2021-05-24T23:32:57.47
IV.APRC.HNN. ML:2.3 0.0011864265000000001 0.6784 AML other m 2021-05-24T23:32:58.52
IV.MSAG.HNE. ML:2.0 0.0002505153 0.2688 AML other m 2021-05-24T23:32:59.33
IV.MSAG.HHE. ML:1.6 0.0001067248 0.2688 AML other m 2021-05-24T23:32:59.20
OT.OT12.EHE. ML:1.7 0.00012529398999999998 0.2304 AML other m 2021-05-24T23:33:01.06
OT.OT11.EHE. ML:1.7 0.00012757965500000002 0.1664 AML other m 2021-05-24T23:33:01.29
OT.OT11.EHN. ML:1.8 0.0001766782 0.1152 AML other m 2021-05-24T23:33:01.46
IV.MSAG.HHN. ML:1.9 0.0002229932 0.2432 AML other m 2021-05-24T23:33:01.61
IV.MSAG.HNN. ML:2.3 0.0005221551 0.256 AML other m 2021-05-24T23:33:01.61
OT.OT12.EHN. ML:1.9 0.00017549999999999998 0.28 AML other m 2021-05-24T23:33:02.21
IV.CIGN.HHE. ML:1.3 0.00004357398 1.3056 AML other m 2021-05-24T23:33:02.96
IV.CIGN.HHN. ML:1.4 0.00006216908499999999 1.1776 AML other m 2021-05-24T23:33:15.76
IV.LPEL.HHE. ML:1.8 0.000055049330000000004 0.1536 AML other m 2021-05-24T23:33:17.21
IV.LPEL.HHN. ML:1.7 0.00004861112 0.1408 AML other m 2021-05-24T23:33:18.02
IV.LPEL.HNE. ML:2.1 0.00012738782000000002 0.6784 AML other m 2021-05-24T23:33:21.47
IV.INTR.HHE. ML:1.9 0.000054614315 2.1248 AML other m 2021-05-24T23:33:22.82
IV.MRVN.HHN. ML:1.4 0.0000218991 0.1024 AML other m 2021-05-24T23:33:22.11
IV.MRVN.HHE. ML:1.5 0.000024626686 0.2688 AML other m 2021-05-24T23:33:24.77
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