Earthquake with magnitude of ML 1.1 on date 29-01-2021 and time 03:44:55 (Italy) in region 2 km N Montecalvo Irpino (AV)

A magnitude ML 1.1 earthquake occured in region: 2 km N Montecalvo Irpino (AV), on

  • 29-01-2021 02:44:55 (UTC)
  • 29-01-2021 03:44:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.2150, 15.0250 at 11 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
Montecalvo Irpino AV 2 3725 3725
Casalbore AV 3 1800 5525
Buonalbergo BN 4 1730 7255
Ginestra degli Schiavoni BN 7 476 7731
Ariano Irpino AV 9 22700 30431
Sant'Arcangelo Trimonte BN 9 573 31004
Castelfranco in Miscano BN 10 916 31920
San Giorgio La Molara BN 11 2994 34914
Paduli BN 13 3978 38892
Montefalcone di Val Fortore BN 13 1525 40417
Melito Irpino AV 13 1920 42337
Bonito AV 13 2448 44785
Greci AV 13 691 45476
Savignano Irpino AV 13 1140 46616
Molinara BN 13 1618 48234
Pago Veiano BN 13 2406 50640
Apice BN 13 5686 56326
Pietrelcina BN 15 3114 59440
Villanova del Battista AV 15 1690 61130
San Marco dei Cavoti BN 16 3371 64501
Foiano di Val Fortore BN 16 1410 65911
Grottaminarda AV 16 8137 74048
Faeto FG 17 627 74675
Zungoli AV 18 1099 75774
Pesco Sannita BN 18 1972 77746
Celle di San Vito FG 18 166 77912
Roseto Valfortore FG 18 1074 78986
Reino BN 19 1210 80196
Flumeri AV 19 2963 83159
Montaguto AV 19 423 83582
Mirabella Eclano AV 19 7684 91266

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Benevento (60091 inhabitants)
39 Km NE of Avellino (54857 inhabitants)
51 Km SW of Foggia (151991 inhabitants)
60 Km E of Caserta (76326 inhabitants)
60 Km SW of San Severo (53905 inhabitants)
62 Km E of Acerra (59573 inhabitants)
63 Km NE of Cava de' Tirreni (53659 inhabitants)
64 Km NE of Salerno (135261 inhabitants)
67 Km NE of Scafati (50787 inhabitants)
68 Km N of Battipaglia (50786 inhabitants)
68 Km E of Afragola (65057 inhabitants)
70 Km NE of Casoria (77642 inhabitants)
71 Km NE of Portici (55274 inhabitants)
73 Km NE of Ercolano (53709 inhabitants)
73 Km NE of Torre del Greco (86275 inhabitants)
74 Km E of Aversa (53047 inhabitants)
74 Km NE of Castellammare di Stabia (66466 inhabitants)
74 Km W of Cerignola (58396 inhabitants)
76 Km E of Giugliano in Campania (122974 inhabitants)
77 Km NE of Napoli (974074 inhabitants)
78 Km E of Marano di Napoli (59874 inhabitants)
88 Km SW of Manfredonia (57279 inhabitants)
88 Km E of Pozzuoli (81661 inhabitants)
92 Km NW of Potenza (67122 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 1.1 2021-01-29
02:44:55
41.2153 15.0247 11 2021-07-12
16:54:57
Bollettino Sismico Italiano INGV 86831141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-29 02:44:55 ± 0.2
Latitude 41.2153 ± 0.0117
Longitude 15.0247 ± 0.0120
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86831141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1579
Semi-minor axis of confidence ellipse (meter) 498
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 1580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 0.32106
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 86831141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-09 10:59:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNAL.HNE. 2021-01-29T02:45:08.06 0.6 undecidable manual S 154 35.6421 50 0 49
IV.SACR.HNZ. 2021-01-29T02:45:08.03 0.6 undecidable manual S 307 33.3444 50 0.58 43
IV.VITU.HHZ. 2021-01-29T02:45:07.57 0.6 undecidable manual S 264 33.1446 50 0.19 48
IV.CAFE.HHN. 2021-01-29T02:45:06.10 0.6 undecidable manual S 139 27.3504 50 0.27 47
IV.PSB1.HHZ. 2021-01-29T02:45:03.24 0.3 undecidable manual S 273 17.871 121 0.06 75
IV.SNAL.HNE. 2021-01-29T02:45:02.46 0.3 undecidable manual P 154 35.6421 50 -0.49 67
IV.VITU.HHZ. 2021-01-29T02:45:02.16 0.3 undecidable manual P 264 33.1446 50 -0.4 68
IV.SACR.HNZ. 2021-01-29T02:45:02.21 1.0 undecidable manual P 307 33.3444 50 -0.39 23
IV.SGTA.HNZ. 2021-01-29T02:45:02.34 0.6 undecidable manual P 107 29.748 50 0.29 47
IV.MRB1.HHZ. 2021-01-29T02:45:01.49 0.3 undecidable manual S 205 11.2776 133 0.14 75
IV.CAFE.HHN. 2021-01-29T02:45:01.66 0.1 undecidable manual P 139 27.3504 50 0 100
IV.MRB1.HHZ. 2021-01-29T02:44:59.26 0.1 undecidable manual P 205 11.2776 133 0.18 99
IV.PSB1.HHZ. 2021-01-29T02:44:59.89 0.1 positive manual P 273 17.871 121 -0.25 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRB1.HHE. ML:1.0 0.000124 0.46 AML other m 2021-01-29T02:45:04.62
IV.MRB1.HHN. ML:1.1 0.00015695 1.24 AML other m 2021-01-29T02:45:07.36
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