Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 03-03-2021 and time 10:40:39 (Italy) in region 2 km NW San Marco in Lamis (FG)

A magnitude ML 1.4 earthquake occured in region: 2 km NW San Marco in Lamis (FG), on

  • 03-03-2021 09:40:39 (UTC)
  • 03-03-2021 10:40:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7280, 15.6260 at 22 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 Marco in Lamis FG 2 13831 13831
Rignano Garganico FG 6 2117 15948
San Giovanni Rotondo FG 9 27184 43132
San Nicandro Garganico FG 14 15566 58698
Apricena FG 17 13328 72026
Cagnano Varano FG 17 7330 79356

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of San Severo (53905 inhabitants)
27 Km W of Manfredonia (57279 inhabitants)
30 Km N of Foggia (151991 inhabitants)
56 Km NW of Cerignola (58396 inhabitants)
71 Km NW of Barletta (94814 inhabitants)
79 Km NW of Andria (100440 inhabitants)
83 Km NW of Trani (56217 inhabitants)
91 Km NW of Bisceglie (55422 inhabitants)
97 Km NE of Benevento (60091 inhabitants)
100 Km NW of Molfetta (59874 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 1.4 2021-03-03
09:40:39		 41.7278 15.6263 22 2021-07-12
16:55:05		 Bollettino Sismico Italiano INGV 88804411
Reviewed
Rev100 		ML 1.5 2021-03-03
09:40:39		 41.7193 15.6138 23 2021-03-03
09:46:48		 Sala Sismica INGV-Roma 87654301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-03 09:40:39 ± 0.09
Latitude 41.7278 ± 0.0045
Longitude 15.6263 ± 0.0048
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88804411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 433
Semi-minor axis of confidence ellipse (meter) 300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 355
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.79140
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 88804411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-22 13:09:39

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 87654301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-03 09:46:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRVN.HHZ. 2021-03-03T09:41:05.71 0.6 undecidable manual S 147 87.8454 98 0.16 41
IV.MRVN.HHZ. 2021-03-03T09:40:54.45 0.3 undecidable manual P 147 87.8454 98 -0.06 64
IV.TREM.HNN. 2021-03-03T09:40:54.40 0.6 undecidable manual S 348 44.9217 109 0.04 46
IV.MELA.HHZ. 2021-03-03T09:40:53.73 0.6 undecidable manual S 267 41.4252 110 0.25 44
OT.OT14.EHZ. 2021-03-03T09:40:50.60 0.6 undecidable manual S 51 29.8479 119 -0.06 47
OT.OT12.EHZ. 2021-03-03T09:40:49.56 0.6 undecidable manual S 114 25.6521 124 -0.16 47
IV.MSAG.HHZ. 2021-03-03T09:40:49.35 0.6 undecidable manual S 94 23.5542 127 0.1 48
IV.MELA.HHZ. 2021-03-03T09:40:47.58 0.1 undecidable manual P 267 41.4252 110 0.04 92
IV.TREM.HNN. 2021-03-03T09:40:47.57 0.3 undecidable manual P 348 44.9217 109 -0.47 64
OT.OT07.EHZ. 2021-03-03T09:40:47.30 0.6 undecidable manual S 147 14.0748 143 -0.16 48
OT.OT04.EHZ. 2021-03-03T09:40:46.38 0.6 undecidable manual S 256 3.8961 169 0.05 50
IV.SGRT.HHZ. 2021-03-03T09:40:46.96 0.6 undecidable manual S 73 10.1787 152 0.07 49
OT.OT03.EHZ. 2021-03-03T09:40:46.44 0.6 undecidable manual S 132 2.5974 172 0.17 49
OT.OT06.EHZ. 2021-03-03T09:40:46.64 0.6 undecidable manual S 209 5.3946 165 0.22 48
IV.APRC.HHZ. 2021-03-03T09:40:46.73 0.6 undecidable manual S 296 7.5813 158 0.12 49
OT.OT14.EHZ. 2021-03-03T09:40:46.05 0.1 undecidable manual P 51 29.8479 119 0.14 93
OT.OT05.EHZ. 2021-03-03T09:40:46.42 0.6 undecidable manual S 194 7.881 158 -0.21 48
OT.OT12.EHZ. 2021-03-03T09:40:45.05 0.1 undecidable manual P 114 25.6521 124 -0.31 91
IV.MSAG.HHZ. 2021-03-03T09:40:45.35 0.1 undecidable manual P 94 23.5542 127 0.25 92
OT.OT07.EHZ. 2021-03-03T09:40:44.12 0.1 undecidable manual P 147 14.0748 143 0.06 97
OT.OT06.EHZ. 2021-03-03T09:40:43.36 0.1 undecidable manual P 209 5.3946 165 -0.1 98
IV.APRC.HHZ. 2021-03-03T09:40:43.44 0.1 undecidable manual P 296 7.5813 158 -0.13 97
OT.OT05.EHZ. 2021-03-03T09:40:43.30 0.1 undecidable manual P 194 7.881 158 -0.29 94
OT.OT04.EHZ. 2021-03-03T09:40:43.42 0.1 undecidable manual P 256 3.8961 169 0.01 100
IV.SGRT.HHZ. 2021-03-03T09:40:43.99 0.1 undecidable manual P 73 10.1787 152 0.25 94
OT.OT03.EHZ. 2021-03-03T09:40:43.52 0.1 undecidable manual P 132 2.5974 172 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT05.EHE. ML:1.7 0.00032299999999999994 0.24 AML other m 2021-03-03T09:40:46.62
IV.APRC.HHE. ML:1.5 0.000217 1.48 AML other m 2021-03-03T09:40:46.11
IV.APRC.HHN. ML:1.5 0.0002175 0.66 AML other m 2021-03-03T09:40:47.35
OT.OT05.EHN. ML:1.6 0.0002945 1.84 AML other m 2021-03-03T09:40:47.07
IV.SGRT.HHN. ML:1.2 0.0001035 1.08 AML other m 2021-03-03T09:40:47.77
IV.APRC.HNE. ML:1.5 0.00020313029999999998 0.128 AML other m 2021-03-03T09:40:47.27
IV.SGRT.HHE. ML:1.3 0.0001265 1.86 AML other m 2021-03-03T09:40:48.94
OT.OT12.EHN. ML:1.6 0.0001725 0.3 AML other m 2021-03-03T09:40:49.93
OT.OT12.EHE. ML:1.3 0.00008845 1.7 AML other m 2021-03-03T09:40:50.86
IV.MSAG.HHE. ML:1.1 0.0000577 0.46 AML other m 2021-03-03T09:40:50.11
IV.MSAG.HHN. ML:1.4 0.00011999999999999999 0.24 AML other m 2021-03-03T09:40:50.63
IV.MSAG.HNN. ML:1.8 0.0002968305 0.2368 AML other m 2021-03-03T09:40:50.52
IV.MELA.HNE. ML:1.6 0.00012209069 1.8944 AML other m 2021-03-03T09:40:53.95
IV.MELA.HNN. ML:1.4 0.00008141002 0.5312 AML other m 2021-03-03T09:40:53.13
IV.MELA.HHN. ML:1.5 0.00008446259 0.3008 AML other m 2021-03-03T09:40:54.11
IV.MELA.HHE. ML:1.3 0.000053565175 0.4352 AML other m 2021-03-03T09:40:57.45
IV.MRVN.HHE. ML:1.1 0.000013350642 0.16 AML other m 2021-03-03T09:41:09.39
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