Earthquake with magnitude of Md 2.2 on date 13-05-1999 and time 18:42:35 (Italy) in region 5 km SE Borbona (RI)

A magnitude Md 2.2 earthquake occured in region: 5 km SE Borbona (RI), on

  • 13-05-1999 16:42:35 (UTC)
  • 13-05-1999 18:42:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.47, 13.16 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 5 617 617
Cagnano Amiterno AQ 5 1369 1986
Posta RI 8 694 2680
Montereale AQ 9 2581 5261
Antrodoco RI 9 2588 7849
Micigliano RI 9 127 7976
Barete AQ 10 737 8713
Borgo Velino RI 11 972 9685
Pizzoli AQ 12 4326 14011
Capitignano AQ 13 665 14676
Scoppito AQ 14 3727 18403
Castel Sant'Angelo RI 14 1308 19711
Cittareale RI 16 482 20193
Leonessa RI 19 2435 22628
Campotosto AQ 19 542 23170

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of L'Aquila (69753 inhabitants)
43 Km E of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
84 Km W of Chieti (51815 inhabitants)
85 Km NE of Roma (2864731 inhabitants)
86 Km W of Pescara (121014 inhabitants)
87 Km E of Viterbo (67173 inhabitants)
93 Km NE of Velletri (53303 inhabitants)
95 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 1999-05-13
16:42:35
42.47 13.16 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 365739
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-05-13 16:42:35 ± 0.241
Latitude 42.47 ± 0.01
Longitude 13.16 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 365739

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) 2316.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
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) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00809
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 365739
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:43:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ASS.Z. 1999-05-13T16:43:00.44 10.0 undecidable manual SG 327 0.0062 -0.78 0.2
--.SDI.Z. 1999-05-13T16:42:55.12 10.0 undecidable manual PG 147 0.0081 0.75 0.4
--.ASS.Z. 1999-05-13T16:42:50.51 10.0 undecidable manual PG 327 0.0062 -0.04 1.4
--.NRCA.Z. 1999-05-13T16:42:49.98 10.0 undecidable manual SG 354 0.0032 0 0.7
--.MNS.Z. 1999-05-13T16:42:49.26 10.0 undecidable manual SG 256 0.0032 -0.94 0.1
--.NRCA.Z. 1999-05-13T16:42:44.22 10.0 positive manual PG 354 0.0032 0.16 3.4
--.MNS.Z. 1999-05-13T16:42:44.57 10.0 undecidable manual PG 256 0.0032 0.38 1.3
--.AQU.Z. 1999-05-13T16:42:43.35 10.0 undecidable manual SG 124 0.0019 -1.04 0.1
--.AQU.Z. 1999-05-13T16:42:40.54 10.0 undecidable manual PG 124 0.0019 -0.3 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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