Earthquake with magnitude of Md 2.5 on date 22-02-1986 and time 08:57:39 (Italy) in region 2 km NW Miranda (IS)

A magnitude Md 2.5 earthquake occured in region: 2 km NW Miranda (IS), on

  • 22-02-1986 07:57:39 (UTC)
  • 22-02-1986 08:57:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6640, 14.2320 at 10 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
Miranda IS 3 1047 1047
Roccasicura IS 4 550 1597
Forlì del Sannio IS 6 675 2272
Acquaviva d'Isernia IS 7 425 2697
Pesche IS 7 1661 4358
Carovilli IS 8 1359 5717
Isernia IS 8 21842 27559
Sessano del Molise IS 9 727 28286
Pescolanciano IS 9 855 29141
Rionero Sannitico IS 9 1118 30259
Fornelli IS 10 1909 32168
Cerro al Volturno IS 11 1281 33449
Pettoranello del Molise IS 11 460 33909
Carpinone IS 11 1157 35066
Macchia d'Isernia IS 12 1035 36101
Vastogirardi IS 13 704 36805
Colli a Volturno IS 13 1349 38154
Rocchetta a Volturno IS 13 1113 39267
Chiauci IS 13 233 39500
Sant'Agapito IS 13 1496 40996
Castel San Vincenzo IS 14 516 41512
Montaquila IS 14 2456 43968
Civitanova del Sannio IS 14 945 44913
San Pietro Avellana IS 15 503 45416
Montenero Val Cocchiara IS 15 538 45954
Castelpetroso IS 15 1680 47634
Scapoli IS 15 680 48314
Longano IS 16 690 49004
Pietrabbondante IS 16 759 49763
Pizzone IS 16 329 50092
Monteroduni IS 16 2264 52356
Castelpizzuto IS 17 155 52511
Santa Maria del Molise IS 17 665 53176
Castel di Sangro AQ 17 6538 59714
Castelverrino IS 18 115 59829
Alfedena AQ 18 864 60693
Scontrone AQ 18 574 61267
Macchiagodena IS 19 1854 63121
Duronia CB 19 405 63526
Capracotta IS 19 903 64429
Bagnoli del Trigno IS 19 735 65164
Frosolone IS 19 3170 68334
Agnone IS 20 5139 73473
Filignano IS 20 648 74121
Poggio Sannita IS 20 702 74823

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km N of Caserta (76326 inhabitants)
75 Km NW of Benevento (60091 inhabitants)
77 Km N of Aversa (53047 inhabitants)
77 Km S of Chieti (51815 inhabitants)
81 Km N of Acerra (59573 inhabitants)
82 Km N of Giugliano in Campania (122974 inhabitants)
83 Km N of Afragola (65057 inhabitants)
84 Km N of Casoria (77642 inhabitants)
85 Km N of Marano di Napoli (59874 inhabitants)
89 Km S of Pescara (121014 inhabitants)
92 Km N of Pozzuoli (81661 inhabitants)
92 Km N of Napoli (974074 inhabitants)
94 Km N of Portici (55274 inhabitants)
95 Km S of Montesilvano (53738 inhabitants)
95 Km N of Ercolano (53709 inhabitants)
96 Km W of San Severo (53905 inhabitants)
96 Km NW of Avellino (54857 inhabitants)
98 Km N of Torre del Greco (86275 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 2.5 1986-02-22
07:57:39
41.664 14.232 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 23019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-02-22 07:57:39 ± 0.199
Latitude 41.6640 ± 0.0349
Longitude 14.2320 ± 0.0119
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 23019

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) 4008.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00826
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 23019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:25:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AQU.Z. 1986-02-22T07:57:58.00 10.0 undecidable manual PG 318 0.9213 0.02 1
--.SD1.Z. 1986-02-22T07:57:51.50 10.0 undecidable manual SG 278 0.3108 -0.36 0.6
--.SD1.Z. 1986-02-22T07:57:47.00 10.0 undecidable manual PG 278 0.3108 0.27 1.3
--.DUI.Z. 1986-02-22T07:57:47.50 10.0 undecidable manual SG 91 0.1665 0.45 0.5
--.DUI.Z. 1986-02-22T07:57:43.50 10.0 positive manual PG 91 0.1665 -0.46 1.6
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