Earthquake with magnitude of ML 2.1 on date 18-04-2005 and time 17:56:08 (Italy) in region 1 km W Forlì del Sannio (IS)

A magnitude ML 2.1 earthquake occured in region: 1 km W Forlì del Sannio (IS), on

  • 18-04-2005 15:56:08 (UTC)
  • 18-04-2005 17:56:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7020, 14.1680 at 9 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
Forlì del Sannio IS 1 675 675
Rionero Sannitico IS 3 1118 1793
Acquaviva d'Isernia IS 4 425 2218
Roccasicura IS 5 550 2768
Cerro al Volturno IS 7 1281 4049
Montenero Val Cocchiara IS 9 538 4587
Miranda IS 9 1047 5634
San Pietro Avellana IS 10 503 6137
Castel San Vincenzo IS 10 516 6653
Castel di Sangro AQ 11 6538 13191
Carovilli IS 11 1359 14550
Fornelli IS 11 1909 16459
Rocchetta a Volturno IS 11 1113 17572
Vastogirardi IS 11 704 18276
Alfedena AQ 12 864 19140
Pizzone IS 12 329 19469
Scontrone AQ 12 574 20043
Colli a Volturno IS 13 1349 21392
Scapoli IS 13 680 22072
Isernia IS 14 21842 43914
Pesche IS 14 1661 45575
Pescolanciano IS 14 855 46430
Macchia d'Isernia IS 15 1035 47465
Sessano del Molise IS 15 727 48192
Montaquila IS 16 2456 50648
Barrea AQ 16 726 51374
Capracotta IS 17 903 52277
Pettoranello del Molise IS 17 460 52737
Ateleta AQ 17 1181 53918
Roccaraso AQ 18 1627 55545
Carpinone IS 18 1157 56702
Castel del Giudice IS 18 346 57048
Sant'Agapito IS 18 1496 58544
Chiauci IS 18 233 58777
Pietrabbondante IS 19 759 59536
Filignano IS 20 648 60184
Monteroduni IS 20 2264 62448

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km N of Caserta (76326 inhabitants)
72 Km S of Chieti (51815 inhabitants)
81 Km N of Aversa (53047 inhabitants)
82 Km NW of Benevento (60091 inhabitants)
85 Km S of Pescara (121014 inhabitants)
86 Km N of Acerra (59573 inhabitants)
86 Km N of Giugliano in Campania (122974 inhabitants)
87 Km N of Afragola (65057 inhabitants)
89 Km N of Casoria (77642 inhabitants)
89 Km N of Marano di Napoli (59874 inhabitants)
90 Km S of Montesilvano (53738 inhabitants)
95 Km N of Pozzuoli (81661 inhabitants)
96 Km N of Napoli (974074 inhabitants)
96 Km SE of L'Aquila (69753 inhabitants)
99 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
Bulletin
Rev1000
Md 1.9
ML 2.1
2005-04-18
15:56:08
41.702 14.168 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 514529
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-04-18 15:56:08 ± 0.16
Latitude 41.7020 ± 0.0171
Longitude 14.1680 ± 0.0157
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 514529

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2116
Semi-minor axis of confidence ellipse (meter) 672
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 2302.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.65
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.43977
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 514529
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 09:59:35

Md:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 514529
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 09:59:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.EHE. 2005-04-18T15:56:24.34 0.1 undecidable manual Sg 293 48.8178 -0.284 45
IV.SGG.SHZ. 2005-04-18T15:56:21.87 0.1 undecidable manual Sg 153 39.1275 0.123 48
IV.SDI.SHZ. 2005-04-18T15:56:19.10 0.1 undecidable manual Sg 272 29.6481 0.17 48
IV.VVLD.EHE. 2005-04-18T15:56:16.97 0.1 undecidable manual Pg 293 48.8178 -0.37 89
IV.SGG.SHZ. 2005-04-18T15:56:16.74 0.6 undecidable manual Pg 153 39.1275 1.014 35
IV.SDI.SHZ. 2005-04-18T15:56:14.22 0.1 undecidable manual Pg 272 29.6481 0.077 98
IV.CII.SHZ. 2005-04-18T15:56:13.74 0.1 undecidable manual Sg 78 11.6772 0.406 47
IV.RNI2.HHZ. 2005-04-18T15:56:11.81 0.1 undecidable manual Sg 278 1.2987 0.439 48
IV.MIDA.HHZ. 2005-04-18T15:56:11.56 0.1 undecidable manual Sg 133 9.6792 -1.256 33
IV.MIDA.HHZ. 2005-04-18T15:56:10.48 0.1 undecidable manual Pg 133 9.6792 -0.224 98
IV.CII.SHZ. 2005-04-18T15:56:10.88 0.1 undecidable manual Pg 78 11.6772 -0.117 100
IV.RNI2.HHZ. 2005-04-18T15:56:10.12 0.1 undecidable manual Pg 278 1.2987 0.228 99
IV.LAV9.SHZ. 2005-04-18T15:56:08.69 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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