Earthquake with magnitude of ML 1.0 on date 21-10-2021 and time 01:26:59 (Italy) in region 13 km NE Foggia (FG)

A magnitude ML 1.0 earthquake occured in region: 13 km NE Foggia (FG), on

  • 20-10-2021 23:26:59 (UTC)
  • 21-10-2021 01:26:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.54, 15.655 at 17 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Foggia FG 13 151991 151991
Rignano Garganico FG 16 2117 154108
San Marco in Lamis FG 19 13831 167939
San Giovanni Rotondo FG 20 27184 195123
Carapelle FG 20 6570 201693

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Foggia (151991 inhabitants)
24 Km W of Manfredonia (57279 inhabitants)
28 Km SE of San Severo (53905 inhabitants)
37 Km NW of Cerignola (58396 inhabitants)
57 Km W of Barletta (94814 inhabitants)
64 Km NW of Andria (100440 inhabitants)
70 Km W of Trani (56217 inhabitants)
78 Km W of Bisceglie (55422 inhabitants)
86 Km NE of Benevento (60091 inhabitants)
87 Km W of Molfetta (59874 inhabitants)
99 Km W of Bitonto (55540 inhabitants)
100 Km NE of Avellino (54857 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2021-10-20
23:26:59
41.5397 15.6552 17 2021-10-20
23:35:08
Sala Sismica INGV-Roma 96813901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-20 23:26:59 ± 0.14
Latitude 41.5397 ± 0.0063
Longitude 15.6552 ± 0.0060
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96813901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 717
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 720
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 275
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 19
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
Epicentral distance of station farthest from the epicenter (degree) 0.4029
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 96813901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-20 23:35:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VISG.HHZ. 2021-10-20T23:28:43.35 3.0 undecidable manual Sn 0.3 0
IV.MTGR.HHZ. 2021-10-20T23:28:25.06 3.0 undecidable manual Sn -0.32 0
IV.HAGA.HHZ. 2021-10-20T23:27:43.05 3.0 positive manual Pn 0.09 0
MN.VAE.HHZ. 2021-10-20T23:27:41.67 3.0 undecidable manual Pn 0.44 0
IV.MSAG.HHZ. 2021-10-20T23:27:09.79 0.3 undecidable manual S 48 0.2563 109 -0.03 74
IV.APRC.HHN. 2021-10-20T23:27:09.21 0.3 undecidable manual S 339 0.2329 112 0.04 75
OT.OT04.EHZ. 2021-10-20T23:27:08.00 0.3 undecidable manual S 343 0.188 119 0.03 76
IV.SGRT.HHZ. 2021-10-20T23:27:08.90 0.3 undecidable manual S 17 0.2248 113 -0.05 74
OT.OT12.EHZ. 2021-10-20T23:27:08.21 0.3 undecidable manual S 64 0.2104 115 -0.34 71
OT.OT06.EHN. 2021-10-20T23:27:07.21 0.3 undecidable manual S 343 0.1529 126 0.14 75
OT.OT14.EHZ. 2021-10-20T23:27:07.97 0.3 undecidable manual P 28 0.4029 100 0.08 71
OT.OT03.EHN. 2021-10-20T23:27:07.67 0.1 undecidable manual S 359 0.1727 122 0.11 100
OT.OT05.EHZ. 2021-10-20T23:27:06.10 0.3 undecidable manual S 342 0.1259 133 -0.35 70
OT.OT07.EHN. 2021-10-20T23:27:06.02 0.3 undecidable manual S 30 0.0944 142 0.19 74
IV.APRC.HHN. 2021-10-20T23:27:05.13 0.3 undecidable manual P 339 0.2329 112 0.05 74
IV.MSAG.HHZ. 2021-10-20T23:27:05.63 0.6 undecidable manual P 48 0.2563 109 0.18 48
OT.OT12.EHZ. 2021-10-20T23:27:04.70 0.1 positive manual P 64 0.2104 115 -0.02 100
OT.OT03.EHN. 2021-10-20T23:27:04.23 0.3 undecidable manual P 359 0.1727 122 0.07 75
OT.OT04.EHZ. 2021-10-20T23:27:04.45 0.1 undecidable manual P 343 0.188 119 0.07 99
IV.SGRT.HHZ. 2021-10-20T23:27:04.91 0.1 undecidable manual P 17 0.2248 113 -0.04 99
OT.OT07.EHN. 2021-10-20T23:27:03.34 0.1 undecidable manual P 30 0.0944 142 0.19 98
OT.OT06.EHN. 2021-10-20T23:27:03.98 0.3 undecidable manual P 343 0.1529 126 0.11 74
OT.OT05.EHZ. 2021-10-20T23:27:03.15 0.1 undecidable manual P 342 0.1259 133 -0.37 95
IV.MTMR.EHZ. 2021-10-20T23:26:49.01 3.0 undecidable manual P -0.11 0
IX.NSC3.EHZ.02 2021-10-20T23:26:46.05 3.0 undecidable manual P -2.12 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT05.EHE. ML:-0.2 5.025E-6 0.26 AML other m 2021-10-20T23:27:06.71
OT.OT05.EHN. ML:1.2 0.0001245 0.76 AML other m 2021-10-20T23:27:06.79
OT.OT12.EHE. ML:1.2 7.805E-5 0.3 AML other m 2021-10-20T23:27:08.54
OT.OT12.EHN. ML:1.2 9.62E-5 0.5 AML other m 2021-10-20T23:27:08.70
IV.MSAG.HHE. ML:0.7 2.250881E-5 0.1024 AML other m 2021-10-20T23:27:11.14
IV.MSAG.HHN. ML:0.8 3.1808265E-5 0.32 AML other m 2021-10-20T23:27:11.44
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