Earthquake with magnitude of ML 1.4 on date 28-08-2021 and time 21:46:06 (Italy) in region 3 km SE Mirabello Sannitico (CB)

A magnitude ML 1.4 earthquake occured in region: 3 km SE Mirabello Sannitico (CB), on

  • 28-08-2021 19:46:06 (UTC)
  • 28-08-2021 21:46:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.492, 14.687 at 10 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
Mirabello Sannitico CB 3 2180 2180
Cercepiccola CB 4 681 2861
Cercemaggiore CB 5 3777 6638
Ferrazzano CB 5 3344 9982
Gildone CB 5 809 10791
San Giuliano del Sannio CB 6 1029 11820
Campobasso CB 8 49431 61251
Vinchiaturo CB 8 3324 64575
Campodipietra CB 9 2570 67145
Jelsi CB 10 1781 68926
Sepino CB 11 1964 70890
Baranello CB 11 2673 73563
Toro CB 11 1391 74954
San Giovanni in Galdo CB 12 580 75534
Santa Croce del Sannio BN 12 927 76461
Busso CB 13 1273 77734
Riccia CB 13 5262 82996
Sassinoro BN 13 618 83614
Oratino CB 14 1641 85255
Ripalimosani CB 14 3114 88369
Matrice CB 14 1115 89484
Guardiaregia CB 14 801 90285
Colle d'Anchise CB 14 807 91092
Castelpagano BN 14 1483 92575
Campochiaro CB 16 646 93221
San Polo Matese CB 16 470 93691
Casalciprano CB 17 564 94255
Monacilioni CB 17 523 94778
Morcone BN 17 4932 99710
Montagano CB 17 1086 100796
Campolieto CB 17 839 101635
Spinete CB 18 1320 102955
Castropignano CB 18 947 103902
Bojano CB 18 8058 111960
Circello BN 18 2388 114348
Pietracatella CB 19 1375 115723
Colle Sannita BN 19 2431 118154
Gambatesa CB 19 1464 119618
Pietraroja BN 20 545 120163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Benevento (60091 inhabitants)
55 Km NE of Caserta (76326 inhabitants)
62 Km W of San Severo (53905 inhabitants)
65 Km N of Avellino (54857 inhabitants)
66 Km NE of Acerra (59573 inhabitants)
70 Km NE of Aversa (53047 inhabitants)
71 Km NE of Afragola (65057 inhabitants)
72 Km W of Foggia (151991 inhabitants)
73 Km NE of Casoria (77642 inhabitants)
75 Km NE of Giugliano in Campania (122974 inhabitants)
78 Km NE of Marano di Napoli (59874 inhabitants)
79 Km NE of Portici (55274 inhabitants)
81 Km NE of Ercolano (53709 inhabitants)
81 Km NE of Napoli (974074 inhabitants)
83 Km NE of Torre del Greco (86275 inhabitants)
84 Km N of Scafati (50787 inhabitants)
87 Km NE of Pozzuoli (81661 inhabitants)
88 Km N of Cava de' Tirreni (53659 inhabitants)
90 Km N of Castellammare di Stabia (66466 inhabitants)
91 Km N of Salerno (135261 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.4 2021-08-28
19:46:06
41.4922 14.687 10 2021-08-28
19:53:36
Sala Sismica INGV-Roma 94763661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-28 19:46:06 ± 0.21
Latitude 41.4922 ± 0.0135
Longitude 14.6870 ± 0.0180
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94763661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1616
Semi-minor axis of confidence ellipse (meter) 1355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 143
Circular confidence region, given by single value of horizontal uncertainty (meter) 1620
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.6691
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 94763661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-28 19:53:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2021-08-28T19:46:28.75 1.0 undecidable manual S 326 0.6691 50 -0.54 20
IV.RNI2.HHZ. 2021-08-28T19:46:23.67 0.1 undecidable manual S 298 0.4515 50 0.83 74
IV.MIDA.HHZ. 2021-08-28T19:46:20.05 0.1 undecidable manual S 295 0.357 50 0.03 95
IV.LPEL.HHZ. 2021-08-28T19:46:18.81 0.6 undecidable manual P 326 0.6691 50 -0.95 33
IV.RNI2.HHZ. 2021-08-28T19:46:15.59 1.0 undecidable manual P 298 0.4515 50 -0.45 21
IV.PTRJ.HHZ. 2021-08-28T19:46:14.52 0.1 undecidable manual S 223 0.1745 117 0.2 95
IV.TST01.HHE. 2021-08-28T19:46:14.08 0.1 undecidable manual P 319 0.3408 50 -0.06 95
IV.MIDA.HHZ. 2021-08-28T19:46:13.67 1.0 undecidable manual P 295 0.357 50 -0.74 20
IV.VAGA.HHZ. 2021-08-28T19:46:13.82 1.0 positive manual P 257 0.348 50 -0.44 22
IV.GATE.HHZ. 2021-08-28T19:46:11.95 0.6 undecidable manual P 83 0.1682 118 0.95 37
IV.SACR.HHZ. 2021-08-28T19:46:11.87 0.1 undecidable manual S 172 0.0953 133 0.04 100
IV.PTRJ.HHZ. 2021-08-28T19:46:10.83 0.1 positive manual P 223 0.1745 117 -0.3 93
IV.SACR.HHZ. 2021-08-28T19:46:09.56 0.1 negative manual P 172 0.0953 133 -0.12 98
IV.BSSO.HHZ. 2021-08-28T19:46:09.53 0.1 negative manual P 308 0.0881 136 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACR.HHN. ML:1.4 0.000307 0.26 AML other m 2021-08-28T19:46:12.14
IV.SACR.HHE. ML:1.5 0.0003485 0.76 AML other m 2021-08-28T19:46:12.14
IV.SACR.HNN. ML:1.4 0.000337 0.28 AML other m 2021-08-28T19:46:12.14
IV.SACR.HNE. ML:1.4 0.0003 0.76 AML other m 2021-08-28T19:46:12.15
IV.BSSO.HNE. ML:1.4 0.0003495 1.1 AML other m 2021-08-28T19:46:12.96
IV.BSSO.HHE. ML:1.4 0.0003615 1.1 AML other m 2021-08-28T19:46:12.96
IV.BSSO.HHN. ML:1.3 0.000239 0.38 AML other m 2021-08-28T19:46:14.27
IV.BSSO.HNN. ML:1.2 0.0002215 0.38 AML other m 2021-08-28T19:46:14.27
IV.VAGA.HHE. ML:1.1 4.3E-5 0.6 AML other m 2021-08-28T19:46:22.61
IV.VAGA.HHN. ML:1.5 0.000115 0.24 AML other m 2021-08-28T19:46:24.36
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