Earthquake with magnitude of Md 2.5 on date 08-05-1999 and time 15:17:29 (Italy) in region 4 km SW Borbona (RI)

A magnitude Md 2.5 earthquake occured in region: 4 km SW Borbona (RI), on

  • 08-05-1999 13:17:29 (UTC)
  • 08-05-1999 15:17:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4880, 13.1040 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
Borbona RI 4 617 617
Posta RI 4 694 1311
Micigliano RI 6 127 1438
Antrodoco RI 8 2588 4026
Borgo Velino RI 10 972 4998
Cagnano Amiterno AQ 10 1369 6367
Castel Sant'Angelo RI 12 1308 7675
Montereale AQ 12 2581 10256
Leonessa RI 14 2435 12691
Cittareale RI 15 482 13173
Barete AQ 15 737 13910
Cantalice RI 17 2755 16665
Capitignano AQ 17 665 17330
Pizzoli AQ 17 4326 21656
Cittaducale RI 17 6828 28484
Poggio Bustone RI 18 2055 30539
Scoppito AQ 18 3727 34266

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of L'Aquila (69753 inhabitants)
38 Km E of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
62 Km NE of Guidonia Montecelio (88673 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
82 Km E of Viterbo (67173 inhabitants)
84 Km NE of Roma (2864731 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
89 Km W of Chieti (51815 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
91 Km W of Pescara (121014 inhabitants)
93 Km N of Velletri (53303 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 2.5 1999-05-08
13:17:29
42.488 13.104 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 365289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-05-08 13:17:29 ± 0.153
Latitude 42.4880 ± 0.0091
Longitude 13.1040 ± 0.0126
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 365289

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) 1441.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00842
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 365289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:42:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 1999-05-08T13:17:48.64 10.0 undecidable manual PG 145 0.9324 0.01 1.3
--.ASS.Z. 1999-05-08T13:17:43.19 10.0 undecidable manual PG 330 0.6549 -0.34 1.2
--.NRCA.Z. 1999-05-08T13:17:43.59 10.0 undecidable manual SG 1 0.3441 0.59 0.4
--.MNS.Z. 1999-05-08T13:17:42.90 10.0 undecidable manual SG 252 0.3219 0.55 0.4
--.AQU.Z. 1999-05-08T13:17:39.99 10.0 undecidable manual SG 121 0.2553 0.33 0.6
--.PQ9.Z. 1999-05-08T13:17:39.95 10.0 undecidable manual PG 154 0.5106 -0.83 0.4
--.NRCA.Z. 1999-05-08T13:17:37.18 10.0 undecidable manual PG 1 0.3441 -0.15 1.9
--.MNS.Z. 1999-05-08T13:17:37.13 10.0 undecidable manual PG 252 0.3219 0.17 1.9
--.AQU.Z. 1999-05-08T13:17:35.93 10.0 undecidable manual PG 121 0.2553 0.53 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download