Earthquake with magnitude of Md 2.2 on date 21-02-1986 and time 11:48:14 (Italy) in region 1 km N Sant'Agapito (IS)

A magnitude Md 2.2 earthquake occured in region: 1 km N Sant'Agapito (IS), on

  • 21-02-1986 10:48:14 (UTC)
  • 21-02-1986 11:48:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.5580, 14.2210 at 5 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
Sant'Agapito IS 2 1496 1496
Isernia IS 4 21842 23338
Macchia d'Isernia IS 4 1035 24373
Longano IS 5 690 25063
Pettoranello del Molise IS 5 460 25523
Monteroduni IS 5 2264 27787
Castelpizzuto IS 7 155 27942
Pesche IS 8 1661 29603
Fornelli IS 9 1909 31512
Montaquila IS 9 2456 33968
Carpinone IS 9 1157 35125
Miranda IS 10 1047 36172
Gallo Matese CE 10 579 36751
Castelpetroso IS 10 1680 38431
Colli a Volturno IS 11 1349 39780
Capriati a Volturno CE 12 1541 41321
Fontegreca CE 12 811 42132
Letino CE 12 712 42844
Santa Maria del Molise IS 13 665 43509
Ciorlano CE 13 426 43935
Roccamandolfi IS 13 938 44873
Sessano del Molise IS 13 727 45600
Rocchetta a Volturno IS 13 1113 46713
Filignano IS 14 648 47361
Prata Sannita CE 14 1502 48863
Pozzilli IS 14 2380 51243
Acquaviva d'Isernia IS 14 425 51668
Cerro al Volturno IS 15 1281 52949
Scapoli IS 15 680 53629
Cantalupo nel Sannio IS 15 739 54368
Valle Agricola CE 15 890 55258
Macchiagodena IS 16 1854 57112
Roccasicura IS 16 550 57662
Forlì del Sannio IS 16 675 58337
Venafro IS 17 11280 69617
Pescolanciano IS 17 855 70472
Castel San Vincenzo IS 17 516 70988
Pratella CE 17 1565 72553
San Massimo CB 17 855 73408
Carovilli IS 18 1359 74767
Ailano CE 19 1369 76136
Rionero Sannitico IS 19 1118 77254
Conca Casale IS 19 200 77454
Chiauci IS 19 233 77687
Sesto Campano IS 19 2388 80075
Civitanova del Sannio IS 20 945 81020
Pizzone IS 20 329 81349
Frosolone IS 20 3170 84519

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km N of Caserta (76326 inhabitants)
65 Km N of Aversa (53047 inhabitants)
67 Km NW of Benevento (60091 inhabitants)
69 Km N of Acerra (59573 inhabitants)
70 Km N of Giugliano in Campania (122974 inhabitants)
71 Km N of Afragola (65057 inhabitants)
73 Km N of Casoria (77642 inhabitants)
73 Km N of Marano di Napoli (59874 inhabitants)
80 Km N of Pozzuoli (81661 inhabitants)
80 Km N of Napoli (974074 inhabitants)
82 Km N of Portici (55274 inhabitants)
84 Km N of Ercolano (53709 inhabitants)
86 Km NW of Avellino (54857 inhabitants)
87 Km N of Torre del Greco (86275 inhabitants)
88 Km S of Chieti (51815 inhabitants)
94 Km N of Scafati (50787 inhabitants)
98 Km W of San Severo (53905 inhabitants)
98 Km N of Castellammare di Stabia (66466 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
Md 2.2 1986-02-21
10:48:14
41.558 14.221 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 23009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-02-21 10:48:14 ± 0.759
Latitude 41.5580 ± 0.0570
Longitude 14.2210 ± 0.0189
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 23009

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 6530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00899
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 23009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:25:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AQU.Z. 1986-02-21T10:48:49.00 10.0 undecidable manual SG 323 0.999 -0.07 0.5
--.AQU.Z. 1986-02-21T10:48:35.50 10.0 undecidable manual PG 323 0.999 1.22 0.4
--.SD1.Z. 1986-02-21T10:48:27.00 10.0 undecidable manual SG 296 0.3441 -0.34 0.6
--.SD1.Z. 1986-02-21T10:48:21.50 10.0 undecidable manual PG 296 0.3441 -0.22 1.7
--.DUI.Z. 1986-02-21T10:48:18.50 10.0 undecidable manual PG 60 0.1998 -0.2 1.8
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