Earthquake with magnitude of Md 2.3 on date 02-04-1990 and time 23:17:11 (UTC) in region 1 km N Acquaviva d'Isernia (IS)

A magnitude Md 2.3 earthquake occured in region: 1 km N Acquaviva d'Isernia (IS), on

  • 02-04-1990 23:17:11 (UTC)
  • 03-04-1990 01:17:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6810, 14.1510 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
Acquaviva d'Isernia IS 1 425 425
Forlì del Sannio IS 3 675 1100
Rionero Sannitico IS 4 1118 2218
Cerro al Volturno IS 5 1281 3499
Roccasicura IS 7 550 4049
Castel San Vincenzo IS 8 516 4565
Montenero Val Cocchiara IS 8 538 5103
Rocchetta a Volturno IS 8 1113 6216
Fornelli IS 8 1909 8125
Miranda IS 9 1047 9172
Pizzone IS 10 329 9501
Colli a Volturno IS 10 1349 10850
Scapoli IS 11 680 11530
Alfedena AQ 11 864 12394
Scontrone AQ 12 574 12968
Isernia IS 12 21842 34810
Castel di Sangro AQ 12 6538 41348
San Pietro Avellana IS 12 503 41851
Carovilli IS 13 1359 43210
Montaquila IS 13 2456 45666
Macchia d'Isernia IS 13 1035 46701
Pesche IS 13 1661 48362
Vastogirardi IS 14 704 49066
Pescolanciano IS 16 855 49921
Barrea AQ 16 726 50647
Sessano del Molise IS 16 727 51374
Pettoranello del Molise IS 16 460 51834
Sant'Agapito IS 16 1496 53330
Filignano IS 17 648 53978
Carpinone IS 18 1157 55135
Monteroduni IS 18 2264 57399
Longano IS 19 690 58089
Roccaraso AQ 19 1627 59716
Chiauci IS 20 233 59949
Capracotta IS 20 903 60852
Civitella Alfedena AQ 20 296 61148
San Biagio Saracinisco FR 20 349 61497
Ateleta AQ 20 1181 62678

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km N of Caserta (76326 inhabitants)
75 Km S of Chieti (51815 inhabitants)
79 Km N of Aversa (53047 inhabitants)
81 Km NW of Benevento (60091 inhabitants)
84 Km N of Acerra (59573 inhabitants)
84 Km N of Giugliano in Campania (122974 inhabitants)
85 Km N of Afragola (65057 inhabitants)
87 Km N of Casoria (77642 inhabitants)
87 Km N of Marano di Napoli (59874 inhabitants)
87 Km S of Pescara (121014 inhabitants)
93 Km S of Montesilvano (53738 inhabitants)
93 Km N of Pozzuoli (81661 inhabitants)
94 Km N of Napoli (974074 inhabitants)
97 Km N of Portici (55274 inhabitants)
97 Km SE of L'Aquila (69753 inhabitants)
98 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
Bulletin
Rev1000
Md 2.3 1990-04-02
23:17:11
41.681 14.151 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 113289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-04-02 23:17:11 ± 0.422
Latitude 41.6810 ± 0.0379
Longitude 14.1510 ± 0.0221
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 113289

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) 4596.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1
Epicentral distance of station closest to the epicenter (degree) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.01271
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 113289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:45:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SGO.Z. 1990-04-02T23:17:58.00 10.0 undecidable manual SN 141 1.4097 0.9 0.4
--.SGO.Z. 1990-04-02T23:17:39.00 10.0 undecidable manual PN 141 1.4097 1.17 0.8
--.FG2.Z. 1990-04-02T23:17:28.56 10.0 undecidable manual PG 80 0.7548 1.26 1.1
--.RFI.Z. 1990-04-02T23:17:23.30 10.0 undecidable manual SG! 198 0.3996 -3.97 0
--.SDI.Z. 1990-04-02T23:17:22.00 10.0 undecidable manual SG 276 0.2553 0.5 0.8
--.DUI.Z. 1990-04-02T23:17:20.00 10.0 undecidable manual SG 95 0.222 -0.55 0.8
--.RFI.Z. 1990-04-02T23:17:19.57 10.0 undecidable manual PG 198 0.3996 -0.88 1.7
--.SDI.Z. 1990-04-02T23:17:16.50 10.0 undecidable manual PG 276 0.2553 -0.77 1.8
--.DUI.Z. 1990-04-02T23:17:15.00 10.0 undecidable manual PG 95 0.222 -1.72 0.7
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