ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of M 4.0 on date 12-01-1986 and time 22:04:07 (Italy) in region 3 km N Pescolanciano (IS)

A magnitude M 4.0 earthquake occured in region: 3 km N Pescolanciano (IS), on

  • 12-01-1986 21:04:07 (UTC)
  • 12-01-1986 22:04:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.71, 14.34 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
Pescolanciano IS 3 855 855
Carovilli IS 4 1359 2214
Chiauci IS 5 233 2447
Pietrabbondante IS 6 759 3206
Civitanova del Sannio IS 7 945 4151
Sessano del Molise IS 8 727 4878
Castelverrino IS 9 115 4993
Roccasicura IS 9 550 5543
Vastogirardi IS 10 704 6247
Bagnoli del Trigno IS 10 735 6982
Miranda IS 10 1047 8029
Poggio Sannita IS 10 702 8731
Agnone IS 11 5139 13870
Pesche IS 12 1661 15531
Duronia CB 12 405 15936
Carpinone IS 13 1157 17093
Forlì del Sannio IS 13 675 17768
Frosolone IS 15 3170 20938
Belmonte del Sannio IS 15 768 21706
Salcito CB 15 683 22389
Capracotta IS 15 903 23292
Pettoranello del Molise IS 16 460 23752
Pietracupa CB 16 215 23967
Molise CB 16 167 24134
San Pietro Avellana IS 16 503 24637
Acquaviva d'Isernia IS 16 425 25062
Isernia IS 16 21842 46904
Castelpetroso IS 16 1680 48584
Rionero Sannitico IS 16 1118 49702
Torella del Sannio CB 17 795 50497
Santa Maria del Molise IS 17 665 51162
Macchiagodena IS 17 1854 53016
Schiavi di Abruzzo CH 17 860 53876
Fossalto CB 18 1345 55221
Sant'Elena Sannita IS 18 275 55496
Castel del Giudice IS 19 346 55842
Pescopennataro IS 20 285 56127
Fornelli IS 20 1909 58036
Trivento CB 20 4730 62766

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km N of Caserta (76326 inhabitants)
73 Km S of Chieti (51815 inhabitants)
74 Km NW of Benevento (60091 inhabitants)
82 Km N of Aversa (53047 inhabitants)
85 Km N of Acerra (59573 inhabitants)
85 Km S of Pescara (121014 inhabitants)
87 Km W of San Severo (53905 inhabitants)
87 Km N of Afragola (65057 inhabitants)
87 Km N of Giugliano in Campania (122974 inhabitants)
89 Km N of Casoria (77642 inhabitants)
91 Km N of Marano di Napoli (59874 inhabitants)
91 Km S of Montesilvano (53738 inhabitants)
96 Km NW of Avellino (54857 inhabitants)
97 Km N of Napoli (974074 inhabitants)
98 Km N of Pozzuoli (81661 inhabitants)
98 Km N of Portici (55274 inhabitants)
100 Km N of Ercolano (53709 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
Rev 1000 M 4.0 1986-01-12
21:04:07
41.71 14.34 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 20159
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-01-12 21:04:07 ± 0.462
Latitude 41.71 ± 0.04
Longitude 14.34 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 20159

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) 6050.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.1
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.05553
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

M:4

Field Value
Value 4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 20159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.VAY.Z. 1986-01-12T21:05:37.30 10.0 undecidable manual PN 90 0.0555 -0.63 0.9
--.SKO.Z. 1986-01-12T21:05:24.20 10.0 undecidable manual PN 84 0.0476 -1.67 0.5
--.KBN.Z. 1986-01-12T21:05:22.80 10.0 undecidable manual PN 100 0.0447 1.41 0.6
--.OHR.Z. 1986-01-12T21:05:21.50 10.0 undecidable manual PN 94 0.0439 1.31 0.7
--.SDA.Z. 1986-01-12T21:05:05.00 10.0 undecidable manual PN 83 0.0346 -1.11 1
--.FIR.Z. 1986-01-12T21:04:57.00 10.0 undecidable manual PN 313 0.0275 1.74 0.6
--.ORI.Z. 1986-01-12T21:04:45.50 10.0 undecidable manual PN 135 0.0206 0.77 1.3
--.OVO.Z. 1986-01-12T21:04:23.90 10.0 undecidable manual PG 177 0.0079 -0.69 1.4
--.MSC.Z. 1986-01-12T21:04:21.00 10.0 undecidable manual PG 208 0.0052 1.92 0.5
--.SD1.Z. 1986-01-12T21:04:14.50 10.0 positive manual PG 270 0.0035 -1.05 2.3
--.SGG.Z. 1986-01-12T21:04:13.20 10.0 undecidable manual PG 174 0.0028 -1.02 1.2
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