Earthquake with magnitude of Md 2.2 on date 25-09-1998 and time 09:16:17 (Italy) in region 5 km S Borgo Velino (RI)

A magnitude Md 2.2 earthquake occured in region: 5 km S Borgo Velino (RI), on

  • 25-09-1998 07:16:17 (UTC)
  • 25-09-1998 09:16:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.36, 13.07 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
Borgo Velino RI 5 972 972
Castel Sant'Angelo RI 5 1308 2280
Antrodoco RI 6 2588 4868
Petrella Salto RI 8 1197 6065
Concerviano RI 8 291 6356
Micigliano RI 10 127 6483
Cittaducale RI 11 6828 13311
Fiamignano RI 12 1413 14724
Longone Sabino RI 13 597 15321
Varco Sabino RI 14 187 15508
Scoppito AQ 15 3727 19235
Marcetelli RI 15 89 19324
Rocca Sinibalda RI 16 815 20139
Belmonte in Sabina RI 16 636 20775
Cagnano Amiterno AQ 17 1369 22144
Borbona RI 17 617 22761
Rieti RI 18 47698 70459
Posta RI 18 694 71153
Cantalice RI 18 2755 73908
Pescorocchiano RI 18 2075 75983
Castel di Tora RI 19 288 76271
Ascrea RI 20 234 76505
Colle di Tora RI 20 372 76877
Barete AQ 20 737 77614

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of L'Aquila (69753 inhabitants)
41 Km SE of Terni (111501 inhabitants)
49 Km NE of Guidonia Montecelio (88673 inhabitants)
50 Km NE of Tivoli (56533 inhabitants)
61 Km SW of Teramo (54892 inhabitants)
71 Km NE of Roma (2864731 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
79 Km NE of Velletri (53303 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
90 Km W of Chieti (51815 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
90 Km NE of Pomezia (62966 inhabitants)
92 Km NE of Aprilia (73446 inhabitants)
94 Km W of Pescara (121014 inhabitants)
95 Km NE of Fiumicino (78395 inhabitants)
100 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 2.2 1998-09-25
07:16:17
42.36 13.07 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 351879
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-09-25 07:16:17 ± 0.146
Latitude 42.36 ± 0.01
Longitude 13.07 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 351879

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) 1489
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.0068
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 351879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:29:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.NRCA.Z. 1998-09-25T07:16:34.89 10.0 undecidable manual SG 3 0.0042 -0.11 0.7
--.ASS.Z. 1998-09-25T07:16:33.90 10.0 undecidable manual PG 336 0.0068 0.66 0.3
--.MNS.Z. 1998-09-25T07:16:29.12 10.0 undecidable manual SG 274 0.0026 -0.09 0.8
--.AQU.Z. 1998-09-25T07:16:28.00 10.0 undecidable manual SG 92 0.0022 0.29 0.6
--.NRCA.Z. 1998-09-25T07:16:27.36 10.0 undecidable manual PG 3 0.0042 -0.45 0.8
--.MNS.Z. 1998-09-25T07:16:24.37 10.0 undecidable manual PG 274 0.0026 -0.1 1.9
--.AQU.Z. 1998-09-25T07:16:23.50 10.0 undecidable manual PG 92 0.0022 -0.1 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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