Earthquake with magnitude of ML 1.5 on date 28-09-2020 and time 07:49:15 (UTC) in region 5 km NE Sant'Angelo d'Alife (CE)

A magnitude ML 1.5 earthquake occured in region: 5 km NE Sant'Angelo d'Alife (CE), on

  • 28-09-2020 07:49:15 (UTC)
  • 28-09-2020 09:49:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.38, 14.31 at 12 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
Sant'Angelo d'Alife CE 5 2270 2270
San Gregorio Matese CE 5 988 3258
Raviscanina CE 6 1319 4577
Castello del Matese CE 6 1494 6071
Piedimonte Matese CE 6 11297 17368
Valle Agricola CE 6 890 18258
Alife CE 7 7616 25874
San Potito Sannitico CE 9 1925 27799
Ailano CE 9 1369 29168
Letino CE 9 712 29880
Prata Sannita CE 10 1502 31382
Baia e Latina CE 10 2197 33579
Pratella CE 11 1565 35144
Gallo Matese CE 12 579 35723
Dragoni CE 12 2108 37831
Roccamandolfi IS 13 938 38769
Fontegreca CE 13 811 39580
Pietravairano CE 14 2984 42564
Roccaromana CE 14 856 43420
Gioia Sannitica CE 15 3638 47058
Ciorlano CE 15 426 47484
San Massimo CB 15 855 48339
Castelpizzuto IS 15 155 48494
Alvignano CE 16 4824 53318
Vairano Patenora CE 16 6594 59912
Longano IS 16 690 60602
Pietramelara CE 17 4722 65324
Capriati a Volturno CE 17 1541 66865
Cantalupo nel Sannio IS 17 739 67604
Cusano Mutri BN 17 4091 71695
Bojano CB 18 8058 79753
San Polo Matese CB 18 470 80223
Campochiaro CB 18 646 80869
Liberi CE 18 1153 82022
Faicchio BN 18 3634 85656
Riardo CE 19 2321 87977
Monteroduni IS 19 2264 90241
Presenzano CE 19 1766 92007
Sant'Agapito IS 19 1496 93503
Santa Maria del Molise IS 20 665 94168
Sesto Campano IS 20 2388 96556
Castelpetroso IS 20 1680 98236

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Caserta (76326 inhabitants)
46 Km N of Aversa (53047 inhabitants)
49 Km NW of Benevento (60091 inhabitants)
49 Km N of Acerra (59573 inhabitants)
51 Km N of Afragola (65057 inhabitants)
51 Km N of Giugliano in Campania (122974 inhabitants)
53 Km N of Casoria (77642 inhabitants)
55 Km N of Marano di Napoli (59874 inhabitants)
61 Km N of Napoli (974074 inhabitants)
62 Km N of Portici (55274 inhabitants)
62 Km N of Pozzuoli (81661 inhabitants)
64 Km N of Ercolano (53709 inhabitants)
66 Km NW of Avellino (54857 inhabitants)
67 Km N of Torre del Greco (86275 inhabitants)
73 Km N of Scafati (50787 inhabitants)
78 Km N of Castellammare di Stabia (66466 inhabitants)
83 Km NW of Cava de' Tirreni (53659 inhabitants)
87 Km NW of Salerno (135261 inhabitants)
95 Km W of San Severo (53905 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.5 2020-09-28
07:49:15
41.38 14.31 12 2020-09-28
08:01:59
Sala Sismica INGV-Roma 83326781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-28 07:49:15 ± 0.11
Latitude 41.38 ± 0.01
Longitude 14.31 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83326781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 899
Semi-minor axis of confidence ellipse (meter) 174
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 900
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 14
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
Epicentral distance of station farthest from the epicenter (degree) 0.33994
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 83326781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-28 08:01:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ECTS.HHZ. 2020-09-28T07:51:01.75 3.0 undecidable manual Sg 10.88 0
GU.RRL.HHZ. 2020-09-28T07:50:48.51 3.0 undecidable manual Pn 7.71 0
IV.MTRZ.HNZ. 2020-09-28T07:50:36.35 3.0 undecidable manual Sn -1.78 0
GU.CANO.HHZ. 2020-09-28T07:50:26.05 3.0 undecidable manual Pn 2.29 0
IV.ISPIC.HNZ. 2020-09-28T07:50:26.49 3.0 negative manual Pg 6.17 0
XK.GIZZ.HHZ. 2020-09-28T07:50:22.50 3.0 undecidable manual Sn -6.55 0
CR.STON.BHZ. 2020-09-28T07:50:13.12 3.0 undecidable manual Sn 0.05 0
IV.ZCCA.HHZ. 2020-09-28T07:50:10.82 3.0 negative manual Pg 9.01 0
GU.GSCL.HHZ. 2020-09-28T07:50:09.03 3.0 undecidable manual Pn 4.27 0
XK.GIZZ.HHZ. 2020-09-28T07:49:58.44 3.0 negative manual Pg 5.34 0
IV.FRON.EHZ. 2020-09-28T07:49:44.62 3.0 negative manual Pg 3.23 0
OT.OT13.EHZ. 2020-09-28T07:49:38.12 3.0 undecidable manual Sn -2.14 0
IV.VITU.HHN. 2020-09-28T07:49:27.01 0.3 undecidable manual S 130 0.313 92 -0.08 71
IV.SACR.HNZ. 2020-09-28T07:49:27.29 0.6 undecidable manual S 87 0.2968 92 0.69 41
IV.MIDA.HHE. 2020-09-28T07:49:25.38 0.3 undecidable manual S 351 0.2608 93 -0.16 71
IV.VCEL.EHZ. 2020-09-28T07:49:22.42 3.0 undecidable manual P -0.15 0
IV.CERA.HNZ. 2020-09-28T07:49:22.39 1.0 undecidable manual P 314 0.3058 92 0.4 22
IV.VITU.HHN. 2020-09-28T07:49:22.84 1.0 undecidable manual P 130 0.313 92 0.71 20
IV.RNI2.HHE. 2020-09-28T07:49:22.71 1.0 undecidable manual P 340 0.3399 92 0.13 23
IV.BSSO.HNN. 2020-09-28T07:49:21.37 0.1 undecidable manual P 53 0.2671 92 0.04 97
IV.SACR.HNZ. 2020-09-28T07:49:21.90 0.3 undecidable manual P 87 0.2968 92 0.06 72
IV.PIGN.HHZ. 2020-09-28T07:49:20.19 0.1 undecidable manual P 208 0.2086 94 -0.15 96
IV.MIDA.HHE. 2020-09-28T07:49:20.91 0.1 undecidable manual P 351 0.2608 93 -0.32 92
IV.VAGA.HHZ. 2020-09-28T07:49:20.32 0.3 undecidable manual S 299 0.0648 138 0.25 72
IV.SGG.HHZ. 2020-09-28T07:49:19.70 0.1 undecidable manual S 87 0.0513 146 -0.13 98
IV.VAGA.HHZ. 2020-09-28T07:49:18.12 0.1 negative manual P 299 0.0648 138 0.05 100
IV.SGG.HHZ. 2020-09-28T07:49:17.82 0.1 undecidable manual P 87 0.0513 146 -0.11 99
IV.PTRJ.HHZ. 2020-09-28T07:49:17.81 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VAGA.HNE. ML:1.5 0.000428 0.14 AML other m 2020-09-28T07:49:22.34
IV.SGG.HHE. ML:1.4 0.00034336255 0.1984 AML other m 2020-09-28T07:49:20.16
IV.SGG.HHN. ML:1.3 0.0002769114 0.096 AML other m 2020-09-28T07:49:20.47
IV.SGG.HNN. ML:1.3 0.00025109595 0.096 AML other m 2020-09-28T07:49:20.52
IV.VAGA.HHE. ML:1.6 0.0004686566 0.1408 AML other m 2020-09-28T07:49:22.34
IV.VAGA.HHN. ML:1.7 0.0006036172 0.16 AML other m 2020-09-28T07:49:21.77
IV.VAGA.HNN. ML:1.6 0.00055602965 0.16 AML other m 2020-09-28T07:49:21.77
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download