Earthquake with magnitude of Md 3.3 on date 01-10-1998 and time 02:41:35 (Italy) in region 2 km NE Castel Sant'Angelo (RI)

A magnitude Md 3.3 earthquake occured in region: 2 km NE Castel Sant'Angelo (RI), on

  • 01-10-1998 00:41:35 (UTC)
  • 01-10-1998 02:41:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.41, 13.04 at 3 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
Castel Sant'Angelo RI 2 1308 1308
Borgo Velino RI 2 972 2280
Antrodoco RI 4 2588 4868
Micigliano RI 5 127 4995
Cittaducale RI 8 6828 11823
Concerviano RI 10 291 12114
Petrella Salto RI 13 1197 13311
Cantalice RI 13 2755 16066
Posta RI 14 694 16760
Borbona RI 14 617 17377
Rieti RI 15 47698 65075
Belmonte in Sabina RI 16 636 65711
Longone Sabino RI 16 597 66308
Poggio Bustone RI 16 2055 68363
Cagnano Amiterno AQ 16 1369 69732
Rocca Sinibalda RI 17 815 70547
Fiamignano RI 17 1413 71960
Leonessa RI 18 2435 74395
Scoppito AQ 18 3727 78122
Varco Sabino RI 19 187 78309
Rivodutri RI 19 1253 79562
Marcetelli RI 20 89 79651

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of L'Aquila (69753 inhabitants)
36 Km E of Terni (111501 inhabitants)
52 Km NE of Guidonia Montecelio (88673 inhabitants)
53 Km NE of Tivoli (56533 inhabitants)
61 Km W of Teramo (54892 inhabitants)
67 Km SE of Foligno (57155 inhabitants)
73 Km NE of Roma (2864731 inhabitants)
77 Km E of Viterbo (67173 inhabitants)
83 Km N of Velletri (53303 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
93 Km W of Chieti (51815 inhabitants)
93 Km NE of Pomezia (62966 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
96 Km NE of Aprilia (73446 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km NE of Fiumicino (78395 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
Rev 1000 Md 3.3
ML-VAX 2.5
1998-10-01
00:41:35
42.41 13.04 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 352489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-10-01 00:41:35 ± 0.226
Latitude 42.41 ± 0.01
Longitude 13.04 ± 0.02
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 352489

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) 1722.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.0153
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 13
Type of magnitude Md
Reference to an origin 352489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:30:16

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 352489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FB9.Z. 1998-10-01T00:42:19.63 10.0 undecidable manual SN 351 0.0117 0.62 0.4
--.ARV.Z. 1998-10-01T00:42:14.38 10.0 undecidable manual SG 356 0.0098 0.27 0.6
--.SDI.Z. 1998-10-01T00:42:08.44 10.0 undecidable manual SG 140 0.0081 0.39 0.6
--.VTB1.Z. 1998-10-01T00:42:07.00 10.0 undecidable manual PN 135 0.0153 0.64 0.8
--.CSNT.Z. 1998-10-01T00:42:06.72 10.0 undecidable manual PN 310 0.0149 0.92 0.6
--.GRFL.Z. 1998-10-01T00:42:06.59 10.0 undecidable manual PN 296 0.0151 0.5 0.9
--.MAB1.Z. 1998-10-01T00:42:05.80 10.0 undecidable manual PN 136 0.0142 0.43 1
--.SNTG.Z. 1998-10-01T00:42:05.16 10.0 undecidable manual SG 355 0.0076 -1.15 0.2
--.ASS.Z. 1998-10-01T00:42:02.92 10.0 undecidable manual SG 336 0.0064 0.99 0.3
--.RDP.Z. 1998-10-01T00:42:01.10 10.0 undecidable manual SG 200 0.0062 -0.27 0.6
--.CPI2.Z. 1998-10-01T00:42:01.99 10.0 undecidable manual PN 130 0.0113 1.77 0.1
--.RFI.Z. 1998-10-01T00:42:01.47 10.0 undecidable manual PN 147 0.0117 0.49 1.1
--.FB9.Z. 1998-10-01T00:42:00.94 10.0 undecidable manual PN 351 0.0117 0.17 1.3
--.CRVI.Z. 1998-10-01T00:41:59.18 10.0 undecidable manual PN 125 0.0104 0.25 1.4
--.RMP.Z. 1998-10-01T00:41:58.89 10.0 undecidable manual SG 203 0.0057 -0.94 0.3
--.ARV.Z. 1998-10-01T00:41:57.11 10.0 undecidable manual PG 356 0.0098 -0.83 0.8
--.SDI.Z. 1998-10-01T00:41:53.72 10.0 undecidable manual PG 140 0.0081 -0.73 1.1
--.NRCA.Z. 1998-10-01T00:41:53.18 10.0 undecidable manual SG 7 0.0038 0.79 0.4
--.SNTG.Z. 1998-10-01T00:41:52.58 10.0 positive manual PG 355 0.0076 -0.86 1.8
--.ASS.Z. 1998-10-01T00:41:50.41 10.0 undecidable manual PG 336 0.0064 -0.5 1.3
--.RDP.Z. 1998-10-01T00:41:49.27 10.0 undecidable manual PG 200 0.0062 -1.27 0.4
--.RMP.Z. 1998-10-01T00:41:48.44 10.0 undecidable manual PG 203 0.0057 -1.26 0.4
--.MNS.Z. 1998-10-01T00:41:47.98 10.0 undecidable manual SG 265 0.0023 1.83 0
--.AQU.Z. 1998-10-01T00:41:46.50 10.0 undecidable manual SG 101 0.0024 0.04 0.7
--.NRCA.Z. 1998-10-01T00:41:45.25 10.0 positive manual PG 7 0.0038 -0.16 3.3
--.MNS.Z. 1998-10-01T00:41:41.96 10.0 negative manual PG 265 0.0023 0.16 3.3
--.AQU.Z. 1998-10-01T00:41:41.85 10.0 positive manual PG 101 0.0024 -0.13 3.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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