Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 25-06-2021 and time 00:32:06 (UTC) in region 2 km SE Vallesaccarda (AV)

A magnitude ML 1.0 earthquake occured in region: 2 km SE Vallesaccarda (AV), on

  • 25-06-2021 00:32:06 (UTC)
  • 25-06-2021 02:32:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.0550, 15.2770 at 17 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.

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
Vallesaccarda AV 2 1386 1386
Vallata AV 3 2714 4100
Trevico AV 4 993 5093
Scampitella AV 5 1234 6327
San Sossio Baronia AV 6 1643 7970
Carife AV 7 1408 9378
San Nicola Baronia AV 7 771 10149
Anzano di Puglia FG 7 1284 11433
Castel Baronia AV 7 1129 12562
Bisaccia AV 9 3831 16393
Zungoli AV 10 1099 17492
Flumeri AV 11 2963 20455
Lacedonia AV 12 2340 22795
Accadia FG 12 2376 25171
Monteleone di Puglia FG 12 1021 26192
Guardia Lombardi AV 13 1718 27910
Villanova del Battista AV 13 1690 29600
Sant'Agata di Puglia FG 14 1959 31559
Andretta AV 14 1927 33486
Sturno AV 14 3080 36566
Rocca San Felice AV 15 851 37417
Morra De Sanctis AV 15 1297 38714
Frigento AV 16 3780 42494
Rocchetta Sant'Antonio FG 16 1875 44369
Sant'Angelo dei Lombardi AV 16 4250 48619
Aquilonia AV 18 1739 50358
Gesualdo AV 18 3516 53874
Grottaminarda AV 18 8137 62011
Villamaina AV 18 995 63006
Torella dei Lombardi AV 18 2144 65150
Panni FG 19 804 65954
Ariano Irpino AV 19 22700 88654
Cairano AV 19 326 88980
Melito Irpino AV 19 1920 90900

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Benevento (60091 inhabitants)
43 Km E of Avellino (54857 inhabitants)
51 Km SW of Foggia (151991 inhabitants)
55 Km NE of Battipaglia (50786 inhabitants)
58 Km W of Cerignola (58396 inhabitants)
60 Km NE of Salerno (135261 inhabitants)
62 Km NE of Cava de' Tirreni (53659 inhabitants)
64 Km NW of Potenza (67122 inhabitants)
71 Km S of San Severo (53905 inhabitants)
72 Km E of Scafati (50787 inhabitants)
77 Km E of Acerra (59573 inhabitants)
78 Km NE of Castellammare di Stabia (66466 inhabitants)
79 Km E of Caserta (76326 inhabitants)
82 Km E of Portici (55274 inhabitants)
82 Km E of Torre del Greco (86275 inhabitants)
82 Km E of Afragola (65057 inhabitants)
83 Km E of Ercolano (53709 inhabitants)
83 Km SW of Manfredonia (57279 inhabitants)
84 Km E of Casoria (77642 inhabitants)
87 Km W of Andria (100440 inhabitants)
89 Km W of Barletta (94814 inhabitants)
89 Km E of Napoli (974074 inhabitants)
90 Km E of Aversa (53047 inhabitants)
91 Km E of Giugliano in Campania (122974 inhabitants)
93 Km E of Marano di Napoli (59874 inhabitants)
99 Km W of Trani (56217 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 1.0 2021-06-25
00:32:06		 41.0552 15.2773 17 2021-12-29
11:12:40		 Bollettino Sismico Italiano INGV 97003371
Reviewed
Rev100 		ML 1.1 2021-06-25
00:32:05		 41.0907 15.1063 11 2021-06-25
00:42:55		 Sala Sismica INGV-Roma 91846211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-25 00:32:06 ± 0.28
Latitude 41.0552 ± 0.0126
Longitude 15.2773 ± 0.0215
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97003371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1819
Semi-minor axis of confidence ellipse (meter) 1003
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 1820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.04137
Epicentral distance of station farthest from the epicenter (degree) 0.28419
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 91846211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-25 00:42:55

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 97003371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-26 13:40:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCRV.HHZ. 2021-06-25T00:32:17.54 0.3 undecidable manual S 197 31.5462 106 0.02 73
IV.MRB1.HHZ. 2021-06-25T00:32:16.92 0.6 undecidable manual S 286 26.9508 110 0.59 41
IV.SNAL.HHZ. 2021-06-25T00:32:14.07 0.3 undecidable manual S 202 15.4734 128 0.42 69
IV.SGTA.HHZ. 2021-06-25T00:32:13.44 0.6 undecidable manual S 40 11.4774 139 0.57 44
IV.MCRV.HHZ. 2021-06-25T00:32:12.76 0.3 undecidable manual P 197 31.5462 106 -0.06 73
IV.CAFE.HHZ. 2021-06-25T00:32:11.67 0.3 undecidable manual S 229 4.5954 162 -0.28 73
IV.MRB1.HHZ. 2021-06-25T00:32:11.95 0.3 undecidable manual P 286 26.9508 110 -0.19 73
IV.SNAL.HHZ. 2021-06-25T00:32:10.62 0.1 undecidable manual P 202 15.4734 128 0.03 100
IV.CAFE.HHZ. 2021-06-25T00:32:09.31 0.1 positive manual P 229 4.5954 162 -0.3 97
IV.SGTA.HHZ. 2021-06-25T00:32:09.93 0.3 undecidable manual P 40 11.4774 139 -0.21 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAFE.HHE. ML:1.5 0.000298 0.22 AML other m 2021-06-25T00:32:11.99
IV.CAFE.HHN. ML:1.1 0.0001205 1.68 AML other m 2021-06-25T00:32:12.13
IV.SNAL.HHE. ML:1.2 0.0001275 0.32 AML other m 2021-06-25T00:32:14.26
IV.SNAL.HHN. ML:0.9 0.0000621 1.56 AML other m 2021-06-25T00:32:14.94
IV.SGTA.HHN. ML:0.9 0.00007209999999999999 0.36 AML other m 2021-06-25T00:32:15.20
IV.SGTA.HHE. ML:1.1 0.00011384999999999999 0.4 AML other m 2021-06-25T00:32:16.06
IV.MCRV.HHN. ML:0.9 0.0000291 0.42 AML other m 2021-06-25T00:32:17.70
IV.MCRV.HHE. ML:0.6 0.000017100000000000002 1.12 AML other m 2021-06-25T00:32:18.97
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