Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 01-04-2023 and time 23:53:43 (Italy) in region 5 km S Sant'Agata di Puglia (FG)

A magnitude ML 1.2 earthquake occured in region: 5 km S Sant'Agata di Puglia (FG), on

  • 01-04-2023 21:53:43 (UTC)
  • 01-04-2023 23:53:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.1020, 15.3870 at 18 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
Sant'Agata di Puglia FG 6 1959 1959
Rocchetta Sant'Antonio FG 6 1875 3834
Lacedonia AV 7 2340 6174
Scampitella AV 8 1234 7408
Accadia FG 8 2376 9784
Anzano di Puglia FG 8 1284 11068
Bisaccia AV 10 3831 14899
Candela FG 12 2728 17627
Vallesaccarda AV 12 1386 19013
Monteleone di Puglia FG 13 1021 20034
Vallata AV 13 2714 22748
Deliceto FG 14 3828 26576
Trevico AV 14 993 27569
Aquilonia AV 15 1739 29308
Zungoli AV 16 1099 30407
San Sossio Baronia AV 16 1643 32050
Panni FG 16 804 32854
San Nicola Baronia AV 16 771 33625
Monteverde AV 17 784 34409
Bovino FG 17 3309 37718
Carife AV 17 1408 39126
Castel Baronia AV 18 1129 40255
Ascoli Satriano FG 19 6244 46499
Villanova del Battista AV 19 1690 48189
Andretta AV 20 1927 50116
Flumeri AV 20 2963 53079
Montaguto AV 20 423 53502

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SW of Foggia (151991 inhabitants)
47 Km W of Cerignola (58396 inhabitants)
51 Km E of Benevento (60091 inhabitants)
54 Km E of Avellino (54857 inhabitants)
62 Km NW of Potenza (67122 inhabitants)
65 Km NE of Battipaglia (50786 inhabitants)
65 Km S of San Severo (53905 inhabitants)
71 Km NE of Salerno (135261 inhabitants)
72 Km NE of Cava de' Tirreni (53659 inhabitants)
74 Km SW of Manfredonia (57279 inhabitants)
77 Km W of Andria (100440 inhabitants)
78 Km W of Barletta (94814 inhabitants)
82 Km E of Scafati (50787 inhabitants)
87 Km E of Acerra (59573 inhabitants)
88 Km E of Caserta (76326 inhabitants)
88 Km W of Trani (56217 inhabitants)
89 Km NE of Castellammare di Stabia (66466 inhabitants)
92 Km E of Portici (55274 inhabitants)
92 Km E of Afragola (65057 inhabitants)
93 Km E of Torre del Greco (86275 inhabitants)
93 Km E of Ercolano (53709 inhabitants)
95 Km E of Casoria (77642 inhabitants)
95 Km W of Bisceglie (55422 inhabitants)
100 Km E of Napoli (974074 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 1.2 2023-04-01
21:53:43		 41.1023 15.3867 18 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116612371
Reviewed
Rev100 		ML 1.2 2023-04-01
21:53:43		 41.1088 15.3665 18 2023-04-01
23:10:33		 Sala Sismica INGV-Roma 115957211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-01 21:53:43 ± 0.14
Latitude 41.1023 ± 0.0054
Longitude 15.3867 ± 0.0107
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116612371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 696
Semi-minor axis of confidence ellipse (meter) 677
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 234
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 0.35973
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 116612371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-14 01:52:35

ML:1.2

Field Value
Value 1.2
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 115957211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-01 23:10:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SALI.HNE.01 2023-04-01T21:53:53.83 0.6 undecidable manual S 222 25.752 116 0.78 39
5H.FR01.EHZ. 2023-04-01T21:53:53.85 0.6 undecidable manual S 273 28.6491 112 0.1 48
IX.LIO3.HHZ. 2023-04-01T21:53:53.69 0.6 undecidable manual S 217 28.5492 113 -0.04 48
IV.SNAL.HHZ. 2023-04-01T21:53:52.82 0.3 undecidable manual S 217 24.6531 117 0.05 73
5H.FR05.EHN. 2023-04-01T21:53:51.37 0.6 undecidable manual S 220 16.5723 130 0.39 46
IX.RSF3.HNE.02 2023-04-01T21:53:51.84 0.6 undecidable manual S 229 23.3544 119 -0.62 42
IV.CAFE.HHZ. 2023-04-01T21:53:50.59 0.6 undecidable manual S 237 14.9739 134 -0.07 49
IV.MCRV.HHN. 2023-04-01T21:53:50.80 0.6 undecidable manual P 207 39.9267 105 -0.15 46
IX.SSB3.HHZ.02 2023-04-01T21:53:50.23 0.3 undecidable manual S 259 13.4754 137 -0.14 73
IV.MOCO.HNE. 2023-04-01T21:53:50.61 0.6 undecidable manual P 327 35.3424 107 0.34 45
IX.LIO3.HHZ. 2023-04-01T21:53:49.10 0.3 undecidable manual P 217 28.5492 113 -0.19 70
5H.FR02.EHZ. 2023-04-01T21:53:49.92 0.3 undecidable manual P 237 32.1456 109 0.11 71
IV.SGTA.HHZ. 2023-04-01T21:53:49.13 0.6 undecidable manual S 333 4.0959 165 -0.02 51
5H.FR01.EHZ. 2023-04-01T21:53:49.18 0.1 undecidable manual P 273 28.6491 112 -0.13 95
IX.RSF3.HNE.02 2023-04-01T21:53:48.44 0.3 undecidable manual P 229 23.3544 119 -0.13 72
IX.SALI.HNE.01 2023-04-01T21:53:48.91 0.3 undecidable manual P 222 25.752 116 0.01 73
IV.SNAL.HHZ. 2023-04-01T21:53:48.72 0.1 undecidable manual P 217 24.6531 117 -0.02 98
IX.SSB3.HHZ.02 2023-04-01T21:53:47.37 0.1 undecidable manual P 259 13.4754 137 0.01 100
IV.CAFE.HHZ. 2023-04-01T21:53:47.41 0.1 undecidable manual P 237 14.9739 134 -0.12 98
5H.FR05.EHN. 2023-04-01T21:53:47.73 0.1 undecidable manual P 220 16.5723 130 0.02 99
IV.SGTA.HHZ. 2023-04-01T21:53:46.77 0.1 undecidable manual P 333 4.0959 165 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGTA.HHN. ML:1.2 0.0001365 1.22 AML other m 2023-04-01T21:53:49.64
IV.SGTA.HHE. ML:1.2 0.000129 0.56 AML other m 2023-04-01T21:53:49.45
IX.SSB3.HHN.02 ML:1.4 0.00016455645 0.192 AML other m 2023-04-01T21:53:50.46
IX.SSB3.HHE.02 ML:1.3 0.00014373736500000001 0.2944 AML other m 2023-04-01T21:53:50.59
IV.CAFE.HHE. ML:1.2 0.000104173855 0.1792 AML other m 2023-04-01T21:53:51.01
IV.CAFE.HHN. ML:1.0 0.000066212445 0.384 AML other m 2023-04-01T21:53:52.01
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