Earthquake with magnitude of ML 1.6 on date 21-02-2020 and time 00:15:26 (UTC) in region 2 km SE Sant'Agapito (IS)

A magnitude ML 1.6 earthquake occured in region: 2 km SE Sant'Agapito (IS), on

  • 21-02-2020 00:15:26 (UTC)
  • 21-02-2020 01:15:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.53, 14.23 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
Sant'Agapito IS 2 1496 1496
Longano IS 2 690 2186
Monteroduni IS 4 2264 4450
Castelpizzuto IS 6 155 4605
Macchia d'Isernia IS 6 1035 5640
Pettoranello del Molise IS 6 460 6100
Isernia IS 7 21842 27942
Gallo Matese CE 7 579 28521
Letino CE 9 712 29233
Fontegreca CE 9 811 30044
Capriati a Volturno CE 10 1541 31585
Montaquila IS 10 2456 34041
Pesche IS 10 1661 35702
Castelpetroso IS 10 1680 37382
Ciorlano CE 11 426 37808
Carpinone IS 11 1157 38965
Roccamandolfi IS 11 938 39903
Prata Sannita CE 11 1502 41405
Fornelli IS 11 1909 43314
Valle Agricola CE 12 890 44204
Santa Maria del Molise IS 12 665 44869
Miranda IS 13 1047 45916
Colli a Volturno IS 13 1349 47265
Cantalupo nel Sannio IS 14 739 48004
Pozzilli IS 14 2380 50384
Pratella CE 14 1565 51949
Filignano IS 14 648 52597
Sessano del Molise IS 15 727 53324
Macchiagodena IS 15 1854 55178
Ailano CE 16 1369 56547
San Massimo CB 16 855 57402
Rocchetta a Volturno IS 16 1113 58515
Venafro IS 16 11280 69795
Scapoli IS 17 680 70475
Acquaviva d'Isernia IS 17 425 70900
Cerro al Volturno IS 17 1281 72181
Sesto Campano IS 17 2388 74569
Raviscanina CE 18 1319 75888
Sant'Angelo d'Alife CE 19 2270 78158
Conca Casale IS 19 200 78358
Roccasicura IS 19 550 78908
Pescolanciano IS 19 855 79763
Forlì del Sannio IS 19 675 80438
Castel San Vincenzo IS 20 516 80954
San Gregorio Matese CE 20 988 81942

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km N of Caserta (76326 inhabitants)
62 Km N of Aversa (53047 inhabitants)
64 Km NW of Benevento (60091 inhabitants)
66 Km N of Acerra (59573 inhabitants)
67 Km N of Giugliano in Campania (122974 inhabitants)
68 Km N of Afragola (65057 inhabitants)
70 Km N of Casoria (77642 inhabitants)
70 Km N of Marano di Napoli (59874 inhabitants)
77 Km N of Pozzuoli (81661 inhabitants)
77 Km N of Napoli (974074 inhabitants)
79 Km N of Portici (55274 inhabitants)
81 Km N of Ercolano (53709 inhabitants)
83 Km NW of Avellino (54857 inhabitants)
83 Km N of Torre del Greco (86275 inhabitants)
90 Km N of Scafati (50787 inhabitants)
92 Km S of Chieti (51815 inhabitants)
95 Km N of Castellammare di Stabia (66466 inhabitants)
97 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
Rev 100 ML 1.6 2020-02-21
00:15:26
41.53 14.23 10 2020-02-21
00:19:08
Sala Sismica INGV-Roma 76685541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-21 00:15:26 ± 0.11
Latitude 41.53 ± 0.01
Longitude 14.23 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76685541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 959
Semi-minor axis of confidence ellipse (meter) 505
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 960
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 0.56477
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 76685541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-21 00:19:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.POFI.HHZ. 2020-02-21T00:15:42.23 0.6 undecidable manual S 296 0.429 50 0.86 38
IV.VVLD.HHZ. 2020-02-21T00:15:36.79 0.6 positive manual P 307 0.5648 50 -0.43 45
IV.INTR.HHZ. 2020-02-21T00:15:36.27 0.6 negative manual P 333 0.5378 50 -0.49 44
IV.RNI2.HHZ. 2020-02-21T00:15:34.67 0.6 undecidable manual S 342 0.1817 117 0.74 45
IV.SGG.HHZ. 2020-02-21T00:15:34.81 0.6 undecidable manual S 142 0.1826 117 0.86 41
IV.POFI.HHZ. 2020-02-21T00:15:34.53 1.0 positive manual P 296 0.429 50 -0.37 23
IV.CERA.HHZ. 2020-02-21T00:15:34.43 0.6 undecidable manual S 293 0.1709 119 0.86 42
IV.TRIV.HHZ. 2020-02-21T00:15:33.55 0.1 undecidable manual P 45 0.3363 50 0.24 97
IV.MCI.EHZ. 2020-02-21T00:15:32.67 0.1 undecidable manual P 263 0.3139 50 -0.25 98
IV.BSSO.HHZ. 2020-02-21T00:15:32.42 0.1 undecidable manual P 87 0.2734 50 0.19 99
IV.PIGN.HHZ. 2020-02-21T00:15:32.97 0.1 undecidable manual P 186 0.3318 50 -0.27 98
IV.MIDA.HHZ. 2020-02-21T00:15:31.44 0.6 undecidable manual S 10 0.1133 130 -0.26 50
IV.VAGA.HHZ. 2020-02-21T00:15:31.84 0.6 undecidable manual S 178 0.1151 129 0.08 53
IV.CERA.HHZ. 2020-02-21T00:15:30.25 0.6 negative manual P 293 0.1709 119 -0.14 51
IV.RNI2.HHZ. 2020-02-21T00:15:30.40 0.6 negative manual P 342 0.1817 117 -0.2 50
IV.SGG.HHZ. 2020-02-21T00:15:30.42 0.3 negative manual P 142 0.1826 117 -0.19 76
IV.VAGA.HHZ. 2020-02-21T00:15:29.30 0.6 negative manual P 178 0.1151 129 -0.05 53
IV.MIDA.HHZ. 2020-02-21T00:15:29.05 0.1 positive manual P 10 0.1133 130 -0.26 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HNE. ML:1.8 0.0007355 0.76 AML other m 2020-02-21T00:15:31.96
IV.MIDA.HHN. ML:1.7 0.0005325 0.76 AML other m 2020-02-21T00:15:31.96
IV.MIDA.HHE. ML:1.6 0.0004365 0.34 AML other m 2020-02-21T00:15:32.21
IV.VAGA.HHE. ML:2 0.001101 0.18 AML other m 2020-02-21T00:15:32.89
IV.VAGA.HHN. ML:2.1 0.001305 0.3 AML other m 2020-02-21T00:15:32.99
IV.VAGA.HNN. ML:2.1 0.00126 1.68 AML other m 2020-02-21T00:15:33.00
IV.VAGA.HNE. ML:2 0.0010365 1.7 AML other m 2020-02-21T00:15:33.89
IV.RNI2.HHN. ML:1.6 0.000259 1.64 AML other m 2020-02-21T00:15:34.82
IV.RNI2.HNN. ML:1.5 0.000246 1.64 AML other m 2020-02-21T00:15:34.82
IV.CERA.HHE. ML:1.7 0.0003665 0.26 AML other m 2020-02-21T00:15:35.70
IV.CERA.HNE. ML:1.7 0.000353 0.44 AML other m 2020-02-21T00:15:35.70
IV.RNI2.HNE. ML:1.6 0.0002865 0.44 AML other m 2020-02-21T00:15:35.96
IV.RNI2.HHE. ML:1.6 0.0002915 1.3 AML other m 2020-02-21T00:15:36.12
IV.SGG.HHE. ML:1.6 0.000303 0.64 AML other m 2020-02-21T00:15:36.89
IV.CERA.HHN. ML:1.6 0.0003285 0.8 AML other m 2020-02-21T00:15:37.49
IV.CERA.HNN. ML:1.6 0.000322 0.78 AML other m 2020-02-21T00:15:37.50
IV.SGG.HHN. ML:1.6 0.0002785 0.42 AML other m 2020-02-21T00:15:37.43
IV.MIDA.HNN. ML:1.8 0.000754 1.16 AML other m 2020-02-21T00:15:38.78
IV.MCI.EHN. ML:1.5 0.000122 0.64 AML other m 2020-02-21T00:15:39.61
IV.MCI.EHE. ML:1.5 0.0001315 0.54 AML other m 2020-02-21T00:15:41.04
IV.POFI.HHE. ML:1 2.965E-5 0.68 AML other m 2020-02-21T00:15:43.51
IV.POFI.HHN. ML:1.1 3.51E-5 1.4 AML other m 2020-02-21T00:15:44.70
IV.INTR.HHE. ML:1.5 5.86E-5 1.1 AML other m 2020-02-21T00:15:45.41
IV.VVLD.HHN. ML:1.3 3.595E-5 1.12 AML other m 2020-02-21T00:15:45.12
IV.VVLD.HHE. ML:1.4 4.37E-5 0.5 AML other m 2020-02-21T00:15:46.45
IV.INTR.HHN. ML:1.5 6.96E-5 1.04 AML other m 2020-02-21T00:15:59.84
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