Earthquake with magnitude of Md 2.2 on date 18-10-1999 and time 18:58:52 (Italy) in region 1 km E Acquaviva d'Isernia (IS)

A magnitude Md 2.2 earthquake occured in region: 1 km E Acquaviva d'Isernia (IS), on

  • 18-10-1999 16:58:52 (UTC)
  • 18-10-1999 18:58:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6710, 14.1570 at 21 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 4 675 1100
Cerro al Volturno IS 5 1281 2381
Rionero Sannitico IS 5 1118 3499
Roccasicura IS 7 550 4049
Fornelli IS 7 1909 5958
Rocchetta a Volturno IS 8 1113 7071
Miranda IS 8 1047 8118
Castel San Vincenzo IS 8 516 8634
Colli a Volturno IS 9 1349 9983
Montenero Val Cocchiara IS 9 538 10521
Pizzone IS 10 329 10850
Scapoli IS 10 680 11530
Isernia IS 11 21842 33372
Montaquila IS 12 2456 35828
Macchia d'Isernia IS 12 1035 36863
Pesche IS 12 1661 38524
Alfedena AQ 12 864 39388
Carovilli IS 12 1359 40747
Scontrone AQ 13 574 41321
San Pietro Avellana IS 13 503 41824
Castel di Sangro AQ 13 6538 48362
Vastogirardi IS 14 704 49066
Pettoranello del Molise IS 15 460 49526
Sessano del Molise IS 15 727 50253
Pescolanciano IS 15 855 51108
Sant'Agapito IS 15 1496 52604
Filignano IS 16 648 53252
Carpinone IS 16 1157 54409
Monteroduni IS 17 2264 56673
Barrea AQ 17 726 57399
Longano IS 18 690 58089
Chiauci IS 19 233 58322
Pozzilli IS 19 2380 60702
Castelpetroso IS 20 1680 62382
Castelpizzuto IS 20 155 62537

Municipalities with at least 50000 inhabitants

An earthquake occurred to
68 Km N of Caserta (76326 inhabitants)
76 Km S of Chieti (51815 inhabitants)
78 Km N of Aversa (53047 inhabitants)
80 Km NW of Benevento (60091 inhabitants)
83 Km N of Acerra (59573 inhabitants)
83 Km N of Giugliano in Campania (122974 inhabitants)
84 Km N of Afragola (65057 inhabitants)
86 Km N of Casoria (77642 inhabitants)
86 Km N of Marano di Napoli (59874 inhabitants)
89 Km S of Pescara (121014 inhabitants)
92 Km N of Pozzuoli (81661 inhabitants)
93 Km N of Napoli (974074 inhabitants)
94 Km S of Montesilvano (53738 inhabitants)
96 Km N of Portici (55274 inhabitants)
97 Km N of Ercolano (53709 inhabitants)
98 Km SE of L'Aquila (69753 inhabitants)
100 Km NW of Avellino (54857 inhabitants)
100 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 2.2 1999-10-18
16:58:52
41.671 14.157 21 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 375879
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-10-18 16:58:52 ± 0.862
Latitude 41.6710 ± 0.0342
Longitude 14.1570 ± 0.0253
Depth (km) 21 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 375879

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) 4350.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00024
Epicentral distance of station farthest from the epicenter (degree) 0.00130
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 375879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:52:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CRVI.Z. 1999-10-18T16:59:00.49 10.0 undecidable manual SG 64 0.1221 0.03 0.5
--.RVI2.Z. 1999-10-18T16:58:59.48 10.0 undecidable manual SG 243 0.111 -0.83 0
--.RNI2.Z. 1999-10-18T16:58:59.69 10.0 undecidable manual SG 353 0.0222 0.43 0.1
--.CPI2.Z. 1999-10-18T16:58:57.55 10.0 negative manual PG 125 0.1443 0.09 1.9
--.RVI2.Z. 1999-10-18T16:58:57.28 10.0 undecidable manual PG 243 0.111 0.2 0.9
--.RNI2.Z. 1999-10-18T16:58:56.62 10.0 negative manual PG 353 0.0222 0.15 2.2
--.CRVI.Z. 1999-10-18T16:58:56.90 10.0 positive manual PG 64 0.1221 -0.27 1.4
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