Earthquake with magnitude of Md 2.1 on date 15-08-1998 and time 21:23:57 (UTC) in region 3 km E Sessano del Molise (IS)

A magnitude Md 2.1 earthquake occured in region: 3 km E Sessano del Molise (IS), on

  • 15-08-1998 21:23:57 (UTC)
  • 15-08-1998 23:23:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6320, 14.3710 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
Sessano del Molise IS 3 727 727
Civitanova del Sannio IS 5 945 1672
Chiauci IS 5 233 1905
Carpinone IS 6 1157 3062
Pescolanciano IS 6 855 3917
Frosolone IS 7 3170 7087
Pesche IS 8 1661 8748
Duronia CB 8 405 9153
Castelpetroso IS 8 1680 10833
Macchiagodena IS 9 1854 12687
Santa Maria del Molise IS 9 665 13352
Pettoranello del Molise IS 10 460 13812
Molise CB 10 167 13979
Miranda IS 10 1047 15026
Sant'Elena Sannita IS 10 275 15301
Bagnoli del Trigno IS 11 735 16036
Carovilli IS 11 1359 17395
Cantalupo nel Sannio IS 12 739 18134
Torella del Sannio CB 13 795 18929
Isernia IS 13 21842 40771
Pietrabbondante IS 13 759 41530
Roccasicura IS 14 550 42080
Pietracupa CB 14 215 42295
Spinete CB 14 1320 43615
Castelpizzuto IS 14 155 43770
Casalciprano CB 14 564 44334
Fossalto CB 15 1345 45679
Castelverrino IS 15 115 45794
Roccamandolfi IS 16 938 46732
Sant'Agapito IS 16 1496 48228
San Massimo CB 16 855 49083
Castropignano CB 16 947 50030
Longano IS 16 690 50720
Poggio Sannita IS 17 702 51422
Forlì del Sannio IS 17 675 52097
Salcito CB 17 683 52780
Busso CB 18 1273 54053
Colle d'Anchise CB 18 807 54860
Vastogirardi IS 18 704 55564
Bojano CB 19 8058 63622
Oratino CB 19 1641 65263
Macchia d'Isernia IS 19 1035 66298
Acquaviva d'Isernia IS 19 425 66723
Fornelli IS 19 1909 68632
Agnone IS 20 5139 73771
Baranello CB 20 2673 76444

Municipalities with at least 50000 inhabitants

An earthquake occurred to
62 Km N of Caserta (76326 inhabitants)
66 Km NW of Benevento (60091 inhabitants)
74 Km N of Aversa (53047 inhabitants)
76 Km N of Acerra (59573 inhabitants)
79 Km N of Afragola (65057 inhabitants)
79 Km N of Giugliano in Campania (122974 inhabitants)
81 Km N of Casoria (77642 inhabitants)
82 Km S of Chieti (51815 inhabitants)
83 Km N of Marano di Napoli (59874 inhabitants)
84 Km W of San Severo (53905 inhabitants)
87 Km NW of Avellino (54857 inhabitants)
89 Km N of Napoli (974074 inhabitants)
90 Km N of Portici (55274 inhabitants)
90 Km N of Pozzuoli (81661 inhabitants)
91 Km N of Ercolano (53709 inhabitants)
94 Km S of Pescara (121014 inhabitants)
94 Km N of Torre del Greco (86275 inhabitants)
99 Km N of Scafati (50787 inhabitants)
99 Km W of Foggia (151991 inhabitants)
100 Km S of Montesilvano (53738 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 1998-08-15
21:23:57
41.632 14.371 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 348539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-08-15 21:23:57 ± 0.485
Latitude 41.6320 ± 0.0325
Longitude 14.3710 ± 0.0324
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 348539

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) 4510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00316
Epicentral distance of station farthest from the epicenter (degree) 0.00437
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 348539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:26:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 1998-08-15T21:24:12.78 10.0 undecidable manual SG 280 0.4218 -0.72 0.2
--.MAB1.Z. 1998-08-15T21:24:11.56 10.0 undecidable manual SG 166 0.3774 -0.38 0.5
--.SMB1.Z. 1998-08-15T21:24:09.82 10.0 undecidable manual SG 132 0.3552 -0.88 0.3
--.RFI.Z. 1998-08-15T21:24:08.00 10.0 undecidable manual PG 221 0.4329 1.16 0.4
--.VTB1.Z. 1998-08-15T21:24:07.60 10.0 undecidable manual PG 156 0.4884 -0.14 1.7
--.SDI.Z. 1998-08-15T21:24:06.43 10.0 undecidable manual PG 280 0.4218 -0.11 1.8
--.SMB1.Z. 1998-08-15T21:24:05.34 10.0 undecidable manual PG 132 0.3552 0.42 1.3
--.MAB1.Z. 1998-08-15T21:24:05.60 10.0 undecidable manual PG 166 0.3774 -0.03 1.9
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