Earthquake with magnitude of ML 0.9 on date 22-05-2021 and time 21:45:58 (UTC) in region 1 km N Apollosa (BN)

A magnitude ML 0.9 earthquake occured in region: 1 km N Apollosa (BN), on

  • 22-05-2021 21:45:58 (UTC)
  • 22-05-2021 23:45:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.1040, 14.7060 at 15 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Apollosa BN 1 2658 2658
Castelpoto BN 4 1254 3912
San Leucio del Sannio BN 6 3106 7018
Campoli del Monte Taburno BN 6 1546 8564
Tocco Caudio BN 7 1508 10072
Foglianise BN 7 3385 13457
Benevento BN 7 60091 73548
Montesarchio BN 7 13500 87048
Cautano BN 8 2044 89092
Ceppaloni BN 8 3415 92507
Bonea BN 8 1448 93955
Arpaise BN 9 761 94716
Sant'Angelo a Cupolo BN 9 4325 99041
Vitulano BN 9 2944 101985
San Martino Valle Caudina AV 9 4884 106869
Torrecuso BN 10 3407 110276
Roccabascerana AV 10 2354 112630
Chianche AV 10 475 113105
Pannarano BN 10 2130 115235
San Nicola Manfredi BN 11 3722 118957
Paupisi BN 11 1633 120590
Petruro Irpino AV 11 349 120939
San Martino Sannita BN 12 1230 122169
Bucciano BN 12 2100 124269
Cervinara AV 12 9658 133927
Torrioni AV 12 549 134476
Rotondi AV 12 3591 138067
Ponte BN 12 2580 140647
Altavilla Irpina AV 12 4196 144843
Pietrastornina AV 13 1553 146396
Airola BN 13 8195 154591
Paolisi BN 13 2072 156663
San Giorgio del Sannio BN 13 10022 166685
Moiano BN 14 4094 170779
Calvi BN 14 2682 173461
San Nazzaro BN 14 884 174345
Tufo AV 14 889 175234
Sant'Angelo a Scala AV 14 730 175964
Montefusco AV 15 1338 177302
Santa Paolina AV 15 1256 178558
Arpaia BN 15 1992 180550
Pietrelcina BN 16 3114 183664
Grottolella AV 16 1869 185533
Frasso Telesino BN 16 2318 187851
Solopaca BN 16 3820 191671
Forchia BN 16 1235 192906
Fragneto Monforte BN 17 1840 194746
Paduli BN 17 3978 198724
Pietradefusi AV 17 2348 201072
Prata di Principato Ultra AV 17 2944 204016
Sant'Agata de' Goti BN 17 11216 215232
Pesco Sannita BN 17 1972 217204
Summonte AV 17 1583 218787
Capriglia Irpina AV 17 2398 221185
Casalduni BN 18 1378 222563
San Lorenzo Maggiore BN 18 2154 224717
Pratola Serra AV 18 3764 228481
Melizzano BN 18 1858 230339
Avella AV 18 7890 238229
Quadrelle AV 18 1865 240094
Montefredane AV 18 2297 242391
Fragneto l'Abate BN 18 1049 243440
Sirignano AV 18 2933 246373
Baiano AV 18 4718 251091
San Lupo BN 19 801 251892
Ospedaletto d'Alpinolo AV 19 2145 254037
Venticano AV 19 2537 256574
Roccarainola NA 19 7082 263656
Mugnano del Cardinale AV 19 5373 269029
Sperone AV 19 3706 272735
Apice BN 19 5686 278421
Guardia Sanframondi BN 19 5078 283499
Telese Terme BN 20 7486 290985
Torre Le Nocelle AV 20 1324 292309
Arienzo CE 20 5365 297674
Montemiletto AV 20 5313 302987
Castelvenere BN 20 2562 305549

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Benevento (60091 inhabitants)
22 Km NW of Avellino (54857 inhabitants)
31 Km E of Caserta (76326 inhabitants)
33 Km NE of Acerra (59573 inhabitants)
39 Km NE of Afragola (65057 inhabitants)
41 Km NE of Casoria (77642 inhabitants)
42 Km NE of Scafati (50787 inhabitants)
43 Km NE of Portici (55274 inhabitants)
44 Km E of Aversa (53047 inhabitants)
45 Km NE of Ercolano (53709 inhabitants)
45 Km N of Cava de' Tirreni (53659 inhabitants)
45 Km NE of Torre del Greco (86275 inhabitants)
47 Km E of Giugliano in Campania (122974 inhabitants)
47 Km N of Salerno (135261 inhabitants)
48 Km NE of Napoli (974074 inhabitants)
49 Km E of Marano di Napoli (59874 inhabitants)
49 Km NE of Castellammare di Stabia (66466 inhabitants)
59 Km NE of Pozzuoli (81661 inhabitants)
60 Km NW of Battipaglia (50786 inhabitants)
81 Km SW of Foggia (151991 inhabitants)
86 Km SW of San Severo (53905 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 0.9 2021-05-22
21:45:58
41.1038 14.7065 15 2021-12-29
11:12:18
Bollettino Sismico Italiano INGV 93738031
Reviewed
Rev100
ML 1.0 2021-05-22
21:45:58
41.124 14.6912 19 2021-05-22
21:58:21
Sala Sismica INGV-Roma 90387351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-22 21:45:58 ± 0.2
Latitude 41.1038 ± 0.0108
Longitude 14.7065 ± 0.0119
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93738031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1046
Semi-minor axis of confidence ellipse (meter) 788
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
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 25
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.19785
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 90387351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-22 21:58:21

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 93738031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-06 07:14:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2021-05-22T21:47:43.86 3.0 undecidable manual Sg 10.29 0
IV.ALJA.HHZ. 2021-05-22T21:47:41.25 3.0 undecidable manual Sg 5.26 0
IV.APEC.HHZ. 2021-05-22T21:47:35.92 3.0 undecidable manual Sg 8.14 0
IV.ZONE.HHZ. 2021-05-22T21:47:27.40 3.0 undecidable manual Pn 1.13 0
MN.TRI.HHZ. 2021-05-22T21:47:21.74 3.0 negative manual Pg 11.29 0
IV.EL6.EHZ. 2021-05-22T21:47:20.42 3.0 undecidable manual Sg 4.19 0
IV.MAGO.CHZ. 2021-05-22T21:47:07.12 3.0 undecidable manual Pg 8.12 0
IV.PIPA.HHZ. 2021-05-22T21:47:05.40 3.0 undecidable manual Sg 1.59 0
IV.RIBO.EHZ.01 2021-05-22T21:46:58.78 3.0 undecidable manual Pg 5.46 0
IV.ERC.EHZ. 2021-05-22T21:46:56.02 3.0 undecidable manual Pg 1.61 0
IV.RMP.HHZ. 2021-05-22T21:46:47.41 3.0 undecidable manual Sn -9.4 0
IV.ATVO.HHZ. 2021-05-22T21:46:45.64 3.0 undecidable manual Pn -1.08 0
OT.OT13.EHZ. 2021-05-22T21:46:39.60 3.0 undecidable manual Sg -1.97 0
IV.MC2.EHZ. 2021-05-22T21:46:32.44 3.0 negative manual Pn -4.34 0
IV.MRB1.HNZ. 2021-05-22T21:46:07.05 0.6 undecidable manual S 84 21.9669 111 -0.01 53
IX.SFL3.HNZ.01 2021-05-22T21:46:06.79 3.0 undecidable manual P -3.62 0
IV.PSB1.HHZ. 2021-05-22T21:46:05.80 0.3 undecidable manual S 33 15.873 123 0.19 77
IV.PAOL.HHZ. 2021-05-22T21:46:05.49 0.3 undecidable manual S 235 14.1747 127 0.26 76
IV.VITU.HHZ. 2021-05-22T21:46:04.82 0.3 undecidable manual S 324 10.878 136 0.24 77
IX.BENI.HNZ. 2021-05-22T21:46:03.55 0.6 undecidable manual S 62 6.1938 153 -0.3 51
IV.MRB1.HNZ. 2021-05-22T21:46:03.50 0.3 undecidable manual P 84 21.9669 111 0.05 78
IV.PAOL.HHZ. 2021-05-22T21:46:02.22 0.3 undecidable manual P 235 14.1747 127 -0.17 78
IV.PSB1.HHZ. 2021-05-22T21:46:02.70 0.3 undecidable manual P 33 15.873 123 0.09 79
IV.VITU.HHZ. 2021-05-22T21:46:01.65 0.1 undecidable manual P 324 10.878 136 -0.37 100
IX.BENI.HNZ. 2021-05-22T21:46:01.61 0.3 undecidable manual P 62 6.1938 153 0.01 81
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VITU.HHN. ML:1.2 0.00014991895 0.1664 AML other m 2021-05-22T21:46:05.88
IV.VITU.HHE. ML:1.2 0.0001312704 0.128 AML other m 2021-05-22T21:46:05.87
IV.PAOL.HHE. ML:0.7 0.00004194863 0.1408 AML other m 2021-05-22T21:46:06.64
IV.PAOL.HNE. ML:0.8 0.000055658070000000006 0.1792 AML other m 2021-05-22T21:46:06.56
IV.PAOL.HNN. ML:0.7 0.00003812918499999999 0.1792 AML other m 2021-05-22T21:46:06.77
IV.PAOL.HHN. ML:0.8 0.000048668975 1.7312 AML other m 2021-05-22T21:46:07.05
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