Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.1 on date 01-04-2001 and time 22:51:58 (Italy) in region 2 km S Sessano del Molise (IS)

A magnitude Md 2.1 earthquake occured in region: 2 km S Sessano del Molise (IS), on

  • 01-04-2001 20:51:58 (UTC)
  • 01-04-2001 22:51:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6200, 14.3320 at 22 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sessano del Molise IS 2 727 727
Carpinone IS 3 1157 1884
Pesche IS 4 1661 3545
Castelpetroso IS 7 1680 5225
Pescolanciano IS 7 855 6080
Pettoranello del Molise IS 7 460 6540
Miranda IS 8 1047 7587
Chiauci IS 8 233 7820
Santa Maria del Molise IS 8 665 8485
Civitanova del Sannio IS 8 945 9430
Macchiagodena IS 9 1854 11284
Isernia IS 9 21842 33126
Frosolone IS 10 3170 36296
Carovilli IS 11 1359 37655
Castelpizzuto IS 11 155 37810
Duronia CB 12 405 38215
Cantalupo nel Sannio IS 12 739 38954
Roccasicura IS 12 550 39504
Sant'Agapito IS 12 1496 41000
Sant'Elena Sannita IS 13 275 41275
Longano IS 13 690 41965
Molise CB 14 167 42132
Roccamandolfi IS 14 938 43070
Bagnoli del Trigno IS 14 735 43805
Macchia d'Isernia IS 15 1035 44840
Forlì del Sannio IS 15 675 45515
Pietrabbondante IS 15 759 46274
Spinete CB 16 1320 47594
San Massimo CB 16 855 48449
Fornelli IS 16 1909 50358
Torella del Sannio CB 16 795 51153
Acquaviva d'Isernia IS 16 425 51578
Monteroduni IS 17 2264 53842
Casalciprano CB 17 564 54406
Pietracupa CB 17 215 54621
Castelverrino IS 18 115 54736
Vastogirardi IS 18 704 55440
Montaquila IS 19 2456 57896
Fossalto CB 19 1345 59241
Colli a Volturno IS 19 1349 60590
Rionero Sannitico IS 19 1118 61708
Poggio Sannita IS 19 702 62410
Bojano CB 19 8058 70468
Castropignano CB 19 947 71415
Gallo Matese CE 19 579 71994
Cerro al Volturno IS 19 1281 73275
Letino CE 20 712 73987
Colle d'Anchise CB 20 807 74794

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km N of Caserta (76326 inhabitants)
66 Km NW of Benevento (60091 inhabitants)
73 Km N of Aversa (53047 inhabitants)
75 Km N of Acerra (59573 inhabitants)
78 Km N of Afragola (65057 inhabitants)
78 Km N of Giugliano in Campania (122974 inhabitants)
79 Km N of Casoria (77642 inhabitants)
81 Km N of Marano di Napoli (59874 inhabitants)
83 Km S of Chieti (51815 inhabitants)
87 Km N of Napoli (974074 inhabitants)
88 Km W of San Severo (53905 inhabitants)
88 Km NW of Avellino (54857 inhabitants)
88 Km N of Pozzuoli (81661 inhabitants)
88 Km N of Portici (55274 inhabitants)
90 Km N of Ercolano (53709 inhabitants)
93 Km N of Torre del Greco (86275 inhabitants)
95 Km S of Pescara (121014 inhabitants)
98 Km N of Scafati (50787 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 2.1 2001-04-01
20:51:58		 41.62 14.332 22 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 415109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-04-01 20:51:58 ± 0.351
Latitude 41.6200 ± 0.0150
Longitude 14.3320 ± 0.0168
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 415109

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) 2176.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00202
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 415109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:31:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.RVI2.Z. 2001-04-01T20:52:09.22 10.0 undecidable manual SG 270 0.222 -0.09 0.6
--.RNI2.Z. 2001-04-01T20:52:07.98 10.0 undecidable manual SG 301 0.1554 0.48 0.1
--.CRVI.Z. 2001-04-01T20:52:06.40 10.0 undecidable manual SG 349 0.0999 -0.1 0.8
--.CPI2.Z. 2001-04-01T20:52:05.37 10.0 undecidable manual SG 196 0.0333 -0.34 0.3
--.RVI2.Z. 2001-04-01T20:52:04.77 10.0 undecidable manual PG 270 0.222 -0.02 1.6
--.CRVI.Z. 2001-04-01T20:52:03.16 10.0 undecidable manual PG 349 0.0999 -0.02 2.3
--.RNI2.Z. 2001-04-01T20:52:03.53 10.0 undecidable manual PG 301 0.1554 -0.22 1.2
--.CPI2.Z. 2001-04-01T20:52:02.97 10.0 undecidable manual PG 196 0.0333 0.25 1.1
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