Earthquake with magnitude of ML 1.0 on date 22-05-2021 and time 23:45:58 (Italy) in region 2 km SW Castelpoto (BN)

A magnitude ML 1.0 earthquake occured in region: 2 km SW Castelpoto (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) 41.124, 14.691 at 18 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
Castelpoto BN 2 1254 1254
Apollosa BN 4 2658 3912
Campoli del Monte Taburno BN 4 1546 5458
Foglianise BN 4 3385 8843
Tocco Caudio BN 5 1508 10351
Cautano BN 5 2044 12395
Vitulano BN 7 2944 15339
Torrecuso BN 7 3407 18746
Benevento BN 8 60091 78837
Montesarchio BN 8 13500 92337
San Leucio del Sannio BN 8 3106 95443
Bonea BN 8 1448 96891
Paupisi BN 9 1633 98524
Ponte BN 10 2580 101104
Ceppaloni BN 11 3415 104519
San Martino Valle Caudina AV 11 4884 109403
Arpaise BN 11 761 110164
Bucciano BN 11 2100 112264
Sant'Angelo a Cupolo BN 11 4325 116589
Roccabascerana AV 12 2354 118943
Chianche AV 12 475 119418
Pannarano BN 13 2130 121548
Airola BN 13 8195 129743
Rotondi AV 13 3591 133334
San Nicola Manfredi BN 13 3722 137056
Cervinara AV 13 9658 146714
Moiano BN 13 4094 150808
Paolisi BN 13 2072 152880
Petruro Irpino AV 14 349 153229
San Martino Sannita BN 14 1230 154459
Solopaca BN 14 3820 158279
Frasso Telesino BN 14 2318 160597
Torrioni AV 14 549 161146
Pietrastornina AV 15 1553 162699
Altavilla Irpina AV 15 4196 166895
Fragneto Monforte BN 15 1840 168735
Arpaia BN 15 1992 170727
San Giorgio del Sannio BN 15 10022 180749
San Lorenzo Maggiore BN 15 2154 182903
Casalduni BN 15 1378 184281
Pietrelcina BN 16 3114 187395
Calvi BN 16 2682 190077
Sant'Agata de' Goti BN 16 11216 201293
San Lupo BN 16 801 202094
Pesco Sannita BN 16 1972 204066
Melizzano BN 16 1858 205924
San Nazzaro BN 16 884 206808
Forchia BN 17 1235 208043
Fragneto l'Abate BN 17 1049 209092
Guardia Sanframondi BN 17 5078 214170
Montefusco AV 17 1338 215508
Tufo AV 17 889 216397
Sant'Angelo a Scala AV 17 730 217127
Telese Terme BN 17 7486 224613
Castelvenere BN 17 2562 227175
Santa Paolina AV 17 1256 228431
Paduli BN 17 3978 232409
Pontelandolfo BN 18 2167 234576
Campolattaro BN 19 1072 235648
Grottolella AV 19 1869 237517
Pietradefusi AV 19 2348 239865
Prata di Principato Ultra AV 20 2944 242809
Avella AV 20 7890 250699
Arienzo CE 20 5365 256064
Summonte AV 20 1583 257647
Dugenta BN 20 2798 260445
Roccarainola NA 20 7082 267527
Capriglia Irpina AV 20 2398 269925
Quadrelle AV 20 1865 271790
Baiano AV 20 4718 276508

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km W of Benevento (60091 inhabitants)
25 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)
44 Km NE of Portici (55274 inhabitants)
44 Km E of Aversa (53047 inhabitants)
44 Km NE of Scafati (50787 inhabitants)
45 Km NE of Ercolano (53709 inhabitants)
46 Km NE of Torre del Greco (86275 inhabitants)
46 Km E of Giugliano in Campania (122974 inhabitants)
47 Km N of Cava de' Tirreni (53659 inhabitants)
49 Km NE of Napoli (974074 inhabitants)
49 Km NE of Marano di Napoli (59874 inhabitants)
50 Km N of Salerno (135261 inhabitants)
51 Km NE of Castellammare di Stabia (66466 inhabitants)
59 Km NE of Pozzuoli (81661 inhabitants)
62 Km NW of Battipaglia (50786 inhabitants)
81 Km W of Foggia (151991 inhabitants)
85 Km SW of San Severo (53905 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 1.0 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 ± 0.24
Latitude 41.1240 ± 0.0108
Longitude 14.6912 ± 0.0119
Depth (km) 19 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90387351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1074
Semi-minor axis of confidence ellipse (meter) 848
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 136
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2689
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance 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
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 42 0.134 134 0.13 76
IV.PAOL.HHZ. 2021-05-22T21:46:05.88 0.3 undecidable manual S 225 0.1313 135 0.27 75
IV.PTRJ.HNZ. 2021-05-22T21:46:04.69 0.3 undecidable manual P 333 0.2689 112 0.21 73
IV.VITU.HHZ. 2021-05-22T21:46:04.47 0.3 undecidable manual S 322 0.0746 152 -0.14 77
IV.MRB1.HNZ. 2021-05-22T21:46:03.50 0.3 undecidable manual P 90 0.2086 119 -0.04 76
IV.PAOL.HHZ. 2021-05-22T21:46:02.22 0.3 undecidable manual P 225 0.1313 135 -0.27 73
IV.PSB1.HHZ. 2021-05-22T21:46:02.70 0.3 undecidable manual P 42 0.134 134 0.18 75
IV.VITU.HHZ. 2021-05-22T21:46:01.65 0.1 undecidable manual P 322 0.0746 152 -0.26 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VITU.HHN. ML:1.3 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:0.8 4.194863E-5 0.1408 AML other m 2021-05-22T21:46:06.64
IV.PAOL.HHN. ML:0.9 4.8668975E-5 0.2688 AML other m 2021-05-22T21:46:07.05
IV.PAOL.HNE. ML:0.9 5.565807E-5 0.1792 AML other m 2021-05-22T21:46:06.56
IV.PAOL.HNN. ML:0.8 3.8129185E-5 0.1792 AML other m 2021-05-22T21:46:06.77
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