Earthquake with magnitude of ML 1.8 on date 22-10-2021 and time 04:50:51 (Italy) in region 4 km SW Sant'Agata di Puglia (FG)

A magnitude ML 1.8 earthquake occured in region: 4 km SW Sant'Agata di Puglia (FG), on

  • 22-10-2021 02:50:51 (UTC)
  • 22-10-2021 04:50:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.117, 15.361 at 19 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
Sant'Agata di Puglia FG 4 1959 1959
Accadia FG 5 2376 4335
Anzano di Puglia FG 6 1284 5619
Scampitella AV 6 1234 6853
Rocchetta Sant'Antonio FG 9 1875 8728
Lacedonia AV 9 2340 11068
Monteleone di Puglia FG 10 1021 12089
Vallesaccarda AV 11 1386 13475
Bisaccia AV 12 3831 17306
Deliceto FG 12 3828 21134
Vallata AV 13 2714 23848
Trevico AV 13 993 24841
Candela FG 13 2728 27569
Zungoli AV 13 1099 28668
Panni FG 14 804 29472
San Sossio Baronia AV 14 1643 31115
Bovino FG 15 3309 34424
San Nicola Baronia AV 15 771 35195
Carife AV 16 1408 36603
Castel Baronia AV 16 1129 37732
Villanova del Battista AV 17 1690 39422
Aquilonia AV 17 1739 41161
Montaguto AV 17 423 41584
Flumeri AV 18 2963 44547
Monteverde AV 19 784 45331
Ascoli Satriano FG 20 6244 51575
Savignano Irpino AV 20 1140 52715
Orsara di Puglia FG 20 2767 55482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Foggia (151991 inhabitants)
48 Km W of Cerignola (58396 inhabitants)
49 Km E of Benevento (60091 inhabitants)
53 Km E of Avellino (54857 inhabitants)
63 Km S of San Severo (53905 inhabitants)
65 Km NE of Battipaglia (50786 inhabitants)
65 Km NW of Potenza (67122 inhabitants)
70 Km NE of Salerno (135261 inhabitants)
72 Km NE of Cava de' Tirreni (53659 inhabitants)
74 Km SW of Manfredonia (57279 inhabitants)
79 Km W of Andria (100440 inhabitants)
80 Km W of Barletta (94814 inhabitants)
81 Km NE of Scafati (50787 inhabitants)
85 Km E of Acerra (59573 inhabitants)
86 Km E of Caserta (76326 inhabitants)
88 Km NE of Castellammare di Stabia (66466 inhabitants)
90 Km W of Trani (56217 inhabitants)
91 Km E of Portici (55274 inhabitants)
91 Km E of Afragola (65057 inhabitants)
91 Km E of Torre del Greco (86275 inhabitants)
92 Km E of Ercolano (53709 inhabitants)
93 Km E of Casoria (77642 inhabitants)
97 Km W of Bisceglie (55422 inhabitants)
98 Km E of Aversa (53047 inhabitants)
98 Km E of Napoli (974074 inhabitants)
100 Km E of Giugliano in Campania (122974 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 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 1.8 2021-10-22
02:50:51
41.1173 15.3612 19 2021-10-22
03:05:01
Sala Sismica INGV-Roma 96864361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-22 02:50:51 ± 0.13
Latitude 41.1173 ± 0.0054
Longitude 15.3612 ± 0.0143
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96864361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 981
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.61334
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 96864361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-22 03:05:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MELA.HHZ. 2021-10-22T02:51:12.14 0.1 undecidable manual S 343 0.6133 98 0.32 85
OT.OT05.EHZ. 2021-10-22T02:51:10.84 0.3 undecidable manual S 18 0.5711 99 0.27 65
OT.OT13.EHZ. 2021-10-22T02:51:08.07 3.0 undecidable manual P 0.07 0
IV.MCRV.HHZ. 2021-10-22T02:51:04.42 0.1 undecidable manual S 204 0.3651 106 -0.17 92
IV.MELA.HHZ. 2021-10-22T02:51:02.67 0.1 undecidable manual P 343 0.6133 98 -0.37 84
IV.MRB1.HHE. 2021-10-22T02:51:02.72 0.3 undecidable manual S 271 0.2959 110 0.07 71
OT.OT05.EHZ. 2021-10-22T02:51:01.61 0.3 undecidable manual P 18 0.5711 99 -0.7 57
IV.SNAL.HHZ. 2021-10-22T02:51:00.91 0.1 undecidable manual S 211 0.2239 118 0.22 93
IX.SALI.HNZ.01 2021-10-22T02:51:00.44 0.3 undecidable manual S 216 0.232 117 -0.47 67
IV.MRLC.HNN. 2021-10-22T02:50:59.48 0.1 undecidable manual P 165 0.3732 105 0.48 86
OT.OT11.EHZ. 2021-10-22T02:50:59.28 0.1 undecidable manual P 357 0.3975 104 -0.12 92
IX.SSB3.HHZ.02 2021-10-22T02:50:58.34 0.3 undecidable manual S 249 0.107 143 0.31 70
IV.MOCO.HHZ. 2021-10-22T02:50:58.13 0.3 undecidable manual P 329 0.295 111 0.41 67
IV.RDM3.HHZ.02 2021-10-22T02:50:58.96 3.0 undecidable manual P 0
IV.MCRV.HHZ. 2021-10-22T02:50:58.62 0.1 undecidable manual P 204 0.3651 106 -0.24 90
IV.VULT.HHZ. 2021-10-22T02:50:58.36 3.0 undecidable manual P 0
IX.LGS3.HNN.01 2021-10-22T02:50:57.89 0.3 undecidable manual P 245 0.3085 109 -0.05 71
IV.CAFE.HHZ. 2021-10-22T02:50:57.60 0.3 undecidable manual S 226 0.1295 137 -0.87 59
IV.MRB1.HHE. 2021-10-22T02:50:57.90 0.1 undecidable manual P 271 0.2959 110 0.16 94
IX.CLT3.EHZ.02 2021-10-22T02:50:57.62 0.3 undecidable manual P 171 0.2167 119 1.11 51
IV.BIOG.HHZ. 2021-10-22T02:50:57.06 3.0 undecidable manual P 0
IV.SNR3.EHZ.02 2021-10-22T02:50:57.89 3.0 undecidable manual P 0
IV.SGTA.HHZ. 2021-10-22T02:50:57.02 0.1 undecidable manual S 9 0.018 173 -0.01 100
IX.SALI.HNZ.01 2021-10-22T02:50:56.74 0.1 undecidable manual P 216 0.232 117 0 98
IV.SNAL.HHZ. 2021-10-22T02:50:56.56 0.1 undecidable manual P 211 0.2239 118 -0.05 97
IX.SSB3.HHZ.02 2021-10-22T02:50:55.22 0.1 undecidable manual P 249 0.107 143 0.15 97
IV.CAFE.HHZ. 2021-10-22T02:50:55.17 0.1 undecidable manual P 226 0.1295 137 -0.16 97
IV.SGTA.HHZ. 2021-10-22T02:50:54.02 0.3 undecidable manual P 9 0.018 173 -0.47 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGTA.HNN. ML:2.3 0.001605 0.62 AML other m 2021-10-22T02:50:56.95
IV.SGTA.HHN. ML:2.2 0.001565 0.28 AML other m 2021-10-22T02:50:57.92
IV.SGTA.HHE. ML:2.4 0.002065 1.6 AML other m 2021-10-22T02:50:58.10
IV.SGTA.HNE. ML:2.3 0.001985 0.36 AML other m 2021-10-22T02:50:58.10
IV.CAFE.HHE. ML:1.6 0.000277 0.72 AML other m 2021-10-22T02:50:58.83
IX.SSB3.HHN.02 ML:1.8 0.00041 1.68 AML other m 2021-10-22T02:50:58.04
IV.CAFE.HNN. ML:1.7 0.000318 1.12 AML other m 2021-10-22T02:50:59.82
IV.CAFE.HHN. ML:1.7 0.000355 1.12 AML other m 2021-10-22T02:50:59.26
IX.SSB3.HHE.02 ML:1.8 0.000482 0.88 AML other m 2021-10-22T02:50:59.86
IV.CAFE.HNE. ML:1.8 0.0003785 0.26 AML other m 2021-10-22T02:51:00.68
IV.SNAL.HNN. ML:1.9 0.0003955 0.6 AML other m 2021-10-22T02:51:01.16
IV.SNAL.HHN. ML:1.8 0.000326 0.6 AML other m 2021-10-22T02:51:01.16
IV.SNAL.HHE. ML:2.1 0.0006285 1.32 AML other m 2021-10-22T02:51:01.17
IV.SNAL.HNE. ML:2 0.0005865 1.32 AML other m 2021-10-22T02:51:01.17
IV.MELA.HNE. ML:2.2 0.000241 1.16 AML other m 2021-10-22T02:51:04.71
IV.MELA.HNN. ML:2.2 0.000239 1.08 AML other m 2021-10-22T02:51:04.73
OT.OT11.EHE. ML:1.8 0.00018 0.7 AML other m 2021-10-22T02:51:06.49
OT.OT11.EHN. ML:1.9 0.000227 0.56 AML other m 2021-10-22T02:51:06.84
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