Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 05-03-2021 and time 11:55:44 (Italy) in region Costa Garganica (Foggia)

A magnitude ML 1.0 earthquake occured in region: Costa Garganica (Foggia), on

  • 05-03-2021 10:55:44 (UTC)
  • 05-03-2021 11:55:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.95, 15.72 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 14 3693 3693
Cagnano Varano FG 14 7330 11023
Ischitella FG 16 4432 15455
Carpino FG 16 4182 19637
San Nicandro Garganico FG 18 15566 35203

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Manfredonia (57279 inhabitants)
40 Km NE of San Severo (53905 inhabitants)
56 Km N of Foggia (151991 inhabitants)
78 Km N of Cerignola (58396 inhabitants)
84 Km NW of Barletta (94814 inhabitants)
94 Km NW of Andria (100440 inhabitants)
95 Km NW of Trani (56217 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.0 2021-03-05
10:55:44		 41.95 15.71 11 2021-03-05
11:07:10		 Sala Sismica INGV-Roma 87775731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-05 10:55:44 ± 0.15
Latitude 41.95 ± 0.01
Longitude 15.71 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87775731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 958
Semi-minor axis of confidence ellipse (meter) 728
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 960
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32735
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 87775731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-05 11:07:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VENL.HNZ. 2021-03-05T10:57:28.81 3.0 undecidable manual Sn -9.99 0
IV.GIZZ.HHZ. 2021-03-05T10:57:06.23 3.0 undecidable manual Sg 3.7 0
AC.VLO.HHZ. 2021-03-05T10:57:04.17 3.0 undecidable manual Sg 0.2 0
IT.RMVT.HGZ. 2021-03-05T10:57:02.34 3.0 undecidable manual Sg 4.36 0
IV.SELL.HHZ. 2021-03-05T10:56:59.79 3.0 undecidable manual Sn -3.36 0
IV.IMOL.HNZ. 2021-03-05T10:56:52.91 3.0 negative manual Pg 9.26 0
IV.VIVA.HHZ. 2021-03-05T10:56:52.59 3.0 undecidable manual Sn -0.28 0
IV.VISG.HHZ. 2021-03-05T10:56:45.84 3.0 undecidable manual Pg 1.03 0
IV.FIR.HHZ. 2021-03-05T10:56:45.14 3.0 undecidable manual Pg 1.62 0
IV.ATMI.HHZ. 2021-03-05T10:56:33.57 3.0 negative manual Pg 1.81 0
IV.NARO.HHZ. 2021-03-05T10:56:31.69 3.0 undecidable manual Pg 0.75 0
IV.ATCC.EHZ. 2021-03-05T10:56:24.64 3.0 undecidable manual Pn -2.87 0
IV.CESX.HHZ. 2021-03-05T10:56:23.69 3.0 positive manual Pg -1.5 0
IV.MTMR.HNZ. 2021-03-05T10:56:21.93 3.0 undecidable manual Sn -0.61 0
IV.PTRJ.HNZ. 2021-03-05T10:56:19.03 3.0 undecidable manual Sn -4.13 0
IV.ARVD.HHZ. 2021-03-05T10:56:19.16 3.0 positive manual Pn -7.92 0
OT.OT05.EHZ. 2021-03-05T10:55:56.19 0.3 undecidable manual S 196 0.3013 50 -0.21 97
IV.MSAG.HHZ. 2021-03-05T10:55:55.67 0.3 undecidable manual S 148 0.2779 50 -0.03 99
IV.TREM.HHZ. 2021-03-05T10:55:54.40 0.6 undecidable manual S 319 0.2311 50 0.07 68
IV.SGRT.HHZ. 2021-03-05T10:55:53.24 0.3 undecidable manual S 174 0.1952 50 -0.02 100
OT.OT07.EHN. 2021-03-05T10:55:52.22 0.6 undecidable manual P 179 0.3274 50 0.23 64
OT.OT14.EHZ. 2021-03-05T10:55:51.96 0.3 undecidable manual S 110 0.152 122 0.14 100
IV.MSAG.HHZ. 2021-03-05T10:55:51.44 0.3 undecidable manual P 148 0.2779 50 0.3 96
IV.APRC.HHZ. 2021-03-05T10:55:50.67 0.3 undecidable manual P 214 0.2302 50 0.35 94
OT.OT04.EHZ. 2021-03-05T10:55:50.82 0.3 undecidable manual P 204 0.25 50 0.16 98
OT.OT05.EHZ. 2021-03-05T10:55:50.90 0.3 undecidable manual P 196 0.3013 50 -0.64 87
IV.TREM.HHZ. 2021-03-05T10:55:50.22 0.6 undecidable manual P 319 0.2311 50 -0.13 66
IV.SGRT.HHZ. 2021-03-05T10:55:49.92 0.3 undecidable manual P 174 0.1952 50 0.19 97
OT.OT14.EHZ. 2021-03-05T10:55:48.47 0.3 undecidable manual P 110 0.152 122 -0.43 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HHE. ML:0.7 2.328836E-5 1.0176 AML other m 2021-03-05T10:55:55.51
IV.MSAG.HHN. ML:0.9 3.8202905E-5 0.2816 AML other m 2021-03-05T10:55:56.67
IV.SGRT.HHE. ML:1 7.252559E-5 0.1792 AML other m 2021-03-05T10:55:53.67
IV.SGRT.HHN. ML:0.9 5.671028E-5 0.1984 AML other m 2021-03-05T10:55:53.54
IV.TREM.HHE. ML:1 5.991129E-5 1.1008 AML other m 2021-03-05T10:55:54.81
IV.TREM.HHN. ML:1.4 0.0001525674 1.8432 AML other m 2021-03-05T10:55:53.70
IV.TREM.HNE. ML:1.2 8.6652215E-5 1.1008 AML other m 2021-03-05T10:55:54.81
IV.TREM.HNN. ML:2.1 0.0007243944 1.4208 AML other m 2021-03-05T10:55:54.35
IV.APRC.HHN. ML:0.9 4.64101E-5 0.1024 AML other m 2021-03-05T10:55:51.64
OT.OT05.EHE. ML:0.9 3.669303E-5 1.7984 AML other m 2021-03-05T10:55:56.37
OT.OT05.EHN. ML:0.9 3.5510285E-5 0.3008 AML other m 2021-03-05T10:55:56.23
IV.MSAG.HNE. ML:1 4.69658145E-5 1.8432 AML other m 2021-03-05T10:55:55.75
IV.MSAG.HNN. ML:1.3 9.1034355E-5 0.3008 AML other m 2021-03-05T10:55:56.68
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download