Earthquake with magnitude of Md 2.3 on date 29-09-1998 and time 04:50:29 (Italy) in region 2 km SE Castel Sant'Angelo (RI)

A magnitude Md 2.3 earthquake occured in region: 2 km SE Castel Sant'Angelo (RI), on

  • 29-09-1998 02:50:29 (UTC)
  • 29-09-1998 04:50:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.38, 13.04 at 10 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 3 972 2280
Antrodoco RI 5 2588 4868
Cittaducale RI 8 6828 11696
Micigliano RI 8 127 11823
Concerviano RI 8 291 12114
Petrella Salto RI 10 1197 13311
Longone Sabino RI 14 597 13908
Belmonte in Sabina RI 14 636 14544
Fiamignano RI 15 1413 15957
Cantalice RI 15 2755 18712
Rieti RI 15 47698 66410
Rocca Sinibalda RI 15 815 67225
Varco Sabino RI 16 187 67412
Borbona RI 16 617 68029
Posta RI 16 694 68723
Marcetelli RI 17 89 68812
Cagnano Amiterno AQ 17 1369 70181
Scoppito AQ 18 3727 73908
Poggio Bustone RI 19 2055 75963
Torricella in Sabina RI 20 1342 77305
Castel di Tora RI 20 288 77593

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of L'Aquila (69753 inhabitants)
38 Km SE of Terni (111501 inhabitants)
50 Km NE of Guidonia Montecelio (88673 inhabitants)
51 Km NE of Tivoli (56533 inhabitants)
62 Km SW of Teramo (54892 inhabitants)
70 Km SE of Foligno (57155 inhabitants)
71 Km NE of Roma (2864731 inhabitants)
77 Km E of Viterbo (67173 inhabitants)
80 Km N of Velletri (53303 inhabitants)
91 Km NE of Pomezia (62966 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
92 Km W of Chieti (51815 inhabitants)
93 Km NE of Aprilia (73446 inhabitants)
95 Km NE of Fiumicino (78395 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km SE of Perugia (166134 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 2.3 1998-09-29
02:50:29
42.38 13.04 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 352329
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-09-29 02:50:29 ± 0.182
Latitude 42.38 ± 0.01
Longitude 13.04 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 352329

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) 1927.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00785
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 352329
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:30:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1998-09-29T02:51:00.11 10.0 undecidable manual SG 139 0.0079 0.25 0.7
--.ASS.Z. 1998-09-29T02:50:55.63 10.0 undecidable manual SG 337 0.0066 0.33 0.7
--.SDI.Z. 1998-09-29T02:50:47.14 10.0 undecidable manual PG 139 0.0079 0.04 1.9
--.NRCA.Z. 1998-09-29T02:50:46.77 10.0 undecidable manual SG 6 0.004 0.61 0.5
--.ASS.Z. 1998-09-29T02:50:44.17 10.0 undecidable manual PG 337 0.0066 -0.3 1.8
--.MNS.Z. 1998-09-29T02:50:40.93 10.0 undecidable manual SG 270 0.0023 0.72 0.4
--.AQU.Z. 1998-09-29T02:50:40.89 10.0 undecidable manual SG 96 0.0023 0.77 0.3
--.NRCA.Z. 1998-09-29T02:50:38.47 10.0 undecidable manual PG 6 0.004 -0.73 1
--.AQU.Z. 1998-09-29T02:50:35.11 10.0 undecidable manual PG 96 0.0023 -0.6 1.3
--.MNS.Z. 1998-09-29T02:50:35.19 10.0 undecidable manual PG 270 0.0023 -0.57 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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