Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 22-12-2020 and time 06:19:38 (Italy) in region 1 km SE Castel di Sasso (CE)

A magnitude ML 0.7 earthquake occured in region: 1 km SE Castel di Sasso (CE), on

  • 22-12-2020 05:19:38 (UTC)
  • 22-12-2020 06:19:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.1890, 14.2930 at 8 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castel di Sasso CE 1 1171 1171
Pontelatone CE 4 1703 2874
Liberi CE 4 1153 4027
Piana di Monte Verna CE 4 2390 6417
Formicola CE 6 1488 7905
Bellona CE 6 6053 13958
Caiazzo CE 6 5595 19553
Vitulazio CE 7 7420 26973
Camigliano CE 7 1943 28916
Alvignano CE 7 4824 33740
Pastorano CE 8 3033 36773
Giano Vetusto CE 9 647 37420
Castel Morrone CE 9 3858 41278
Dragoni CE 10 2108 43386
Limatola BN 10 4073 47459
Pignataro Maggiore CE 10 6084 53543
Ruviano CE 10 1655 55198
Capua CE 11 18820 74018
Roccaromana CE 11 856 74874
San Prisco CE 11 12345 87219
Casagiove CE 12 13651 100870
Santa Maria Capua Vetere CE 13 32802 133672
Pietramelara CE 13 4722 138394
Rocchetta e Croce CE 13 460 138854
Casapulla CE 13 8628 147482
Curti CE 13 7132 154614
Caserta CE 13 76326 230940
Baia e Latina CE 13 2197 233137
San Tammaro CE 13 5549 238686
Castel Campagnano CE 14 1581 240267
Puglianello BN 14 1349 241616
Calvi Risorta CE 14 5707 247323
Macerata Campania CE 14 10609 257932
Amorosi BN 14 2797 260729
Recale CE 15 7773 268502
Portico di Caserta CE 15 7802 276304
Riardo CE 15 2321 278625
Dugenta BN 15 2798 281423
San Nicola la Strada CE 15 22448 303871
Valle di Maddaloni CE 16 2742 306613
Alife CE 16 7616 314229
Capodrise CE 16 10094 324323
Sparanise CE 16 7429 331752
Marcianise CE 17 39803 371555
Santa Maria la Fossa CE 17 2729 374284
San Marco Evangelista CE 17 6532 380816
San Salvatore Telesino BN 18 3999 384815
Gioia Sannitica CE 18 3638 388453
Melizzano BN 18 1858 390311
Maddaloni CE 18 39166 429477
Pietravairano CE 18 2984 432461
Faicchio BN 19 3634 436095
San Potito Sannitico CE 19 1925 438020
Durazzano BN 19 2230 440250
Grazzanise CE 20 7067 447317
Sant'Angelo d'Alife CE 20 2270 449587
Francolise CE 20 4922 454509
Cervino CE 20 5031 459540
Piedimonte Matese CE 20 11297 470837
Teano CE 20 12577 483414

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km N of Caserta (76326 inhabitants)
25 Km N of Aversa (53047 inhabitants)
28 Km N of Acerra (59573 inhabitants)
30 Km N of Afragola (65057 inhabitants)
30 Km N of Giugliano in Campania (122974 inhabitants)
31 Km N of Casoria (77642 inhabitants)
33 Km N of Marano di Napoli (59874 inhabitants)
39 Km N of Napoli (974074 inhabitants)
41 Km N of Portici (55274 inhabitants)
42 Km NE of Pozzuoli (81661 inhabitants)
42 Km W of Benevento (60091 inhabitants)
42 Km N of Ercolano (53709 inhabitants)
45 Km N of Torre del Greco (86275 inhabitants)
52 Km NW of Avellino (54857 inhabitants)
53 Km NW of Scafati (50787 inhabitants)
57 Km N of Castellammare di Stabia (66466 inhabitants)
64 Km NW of Cava de' Tirreni (53659 inhabitants)
69 Km NW of Salerno (135261 inhabitants)
87 Km NW of Battipaglia (50786 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 0.7 2020-12-22
05:19:38		 41.1888 14.293 8 2021-02-26
14:56:18		 Bollettino Sismico Italiano INGV 86883941
Reviewed
Rev100 		ML 0.9 2020-12-22
05:19:37		 41.1723 14.2253 16 2020-12-22
05:25:00		 Sala Sismica INGV-Roma 85620821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-22 05:19:38 ± 0.27
Latitude 41.1888 ± 0.0144
Longitude 14.2930 ± 0.0131
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86883941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1386
Semi-minor axis of confidence ellipse (meter) 1046
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
Circular confidence region, given by single value of horizontal uncertainty (meter) 1390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45775
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 7
Type of magnitude ML
Reference to an origin 86883941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-06 14:04:20

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 85620821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-22 05:25:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.HHZ. 2020-12-22T05:19:55.76 3.0 positive manual P 0 0
IV.VITU.HNE. 2020-12-22T05:19:49.33 0.6 undecidable manual S 91 28.1496 105 0.79 53
IV.CERA.HNN. 2020-12-22T05:19:48.93 0.1 undecidable manual P 333 50.8158 50 0.84 100
IV.VAGA.HHZ. 2020-12-22T05:19:47.25 0.6 undecidable manual S 349 25.6521 107 -0.45 61
IV.SGG.HHZ. 2020-12-22T05:19:47.36 0.6 undecidable manual S 18 23.0547 108 0.5 60
IV.BSSO.HHE. 2020-12-22T05:19:46.61 1.0 undecidable manual P 32 46.9197 50 -0.88 25
IV.SACR.HNN. 2020-12-22T05:19:46.11 0.3 undecidable manual P 56 41.4252 50 -0.54 86
IV.VITU.HNE. 2020-12-22T05:19:44.03 0.3 undecidable manual P 91 28.1496 105 -0.23 95
IV.PTRJ.HNN. 2020-12-22T05:19:44.01 0.3 undecidable manual P 45 27.6501 106 -0.16 96
IV.SGG.HHZ. 2020-12-22T05:19:43.39 0.3 positive manual P 18 23.0547 108 0.1 98
IV.VAGA.HHZ. 2020-12-22T05:19:43.36 0.6 undecidable manual P 349 25.6521 107 -0.41 61
IV.PIGN.HHZ. 2020-12-22T05:19:42.81 0.3 undecidable manual S 278 9.4794 129 0.14 100
IV.PIGN.HHZ. 2020-12-22T05:19:40.65 0.3 undecidable manual P 278 9.4794 129 -0.22 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIGN.HHE. ML:0.7 0.00008195 1.88 AML other m 2020-12-22T05:19:42.94
IV.PIGN.HHN. ML:0.4 0.000039158185 0.2208 AML other m 2020-12-22T05:19:43.53
IV.SGG.HHE. ML:0.7 0.00003683863499999999 0.4 AML other m 2020-12-22T05:19:50.97
IV.SGG.HHN. ML:0.8 0.00004435 0.34 AML other m 2020-12-22T05:19:51.08
IV.VAGA.HNN. ML:0.8 0.000039329064999999993 0.5632 AML other m 2020-12-22T05:19:47.96
IV.VAGA.HHN. ML:0.8 0.000033270725 0.2976 AML other m 2020-12-22T05:19:47.96
IV.VAGA.HHE. ML:0.6 0.000023834599999999997 0.2016 AML other m 2020-12-22T05:19:49.81
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