Earthquake with magnitude of Md 2.4 on date 06-02-1999 and time 05:34:43 (Italy) in region 2 km NE Posta (RI)

A magnitude Md 2.4 earthquake occured in region: 2 km NE Posta (RI), on

  • 06-02-1999 04:34:43 (UTC)
  • 06-02-1999 05:34:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5450, 13.1060 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
Posta RI 2 694 694
Borbona RI 4 617 1311
Cittareale RI 9 482 1793
Micigliano RI 11 127 1920
Montereale AQ 12 2581 4501
Leonessa RI 12 2435 6936
Cagnano Amiterno AQ 14 1369 8305
Antrodoco RI 14 2588 10893
Borgo Velino RI 16 972 11865
Capitignano AQ 16 665 12530
Monteleone di Spoleto PG 17 599 13129
Castel Sant'Angelo RI 18 1308 14437
Barete AQ 18 737 15174
Amatrice RI 18 2657 17831
Cantalice RI 19 2755 20586
Poggio Bustone RI 19 2055 22641
Pizzoli AQ 20 4326 26967

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of L'Aquila (69753 inhabitants)
38 Km E of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
83 Km E of Viterbo (67173 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Roma (2864731 inhabitants)
90 Km W of Chieti (51815 inhabitants)
91 Km W of Pescara (121014 inhabitants)
99 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 2.4
ML-VAX 1.6
1999-02-06
04:34:43
42.545 13.106 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 358939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-02-06 04:34:43 ± 0.261
Latitude 42.5450 ± 0.0134
Longitude 13.1060 ± 0.0253
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 358939

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) 2553.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01052
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 358939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:36:32

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 358939
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(km) Takeoff_angle Residual Weight
--.FB9.Z. 1999-02-06T04:35:23.84 10.0 undecidable manual SN 348 1.1655 1.06 0.2
--.FB9.Z. 1999-02-06T04:35:07.74 10.0 undecidable manual PN 348 1.1655 1.74 0.1
--.PQ9.Z. 1999-02-06T04:35:05.55 10.0 undecidable manual SG 157 0.555 1.41 0.1
--.ASS.Z. 1999-02-06T04:35:05.40 10.0 undecidable manual SG 327 0.6105 -0.29 0.6
--.SNTG.Z. 1999-02-06T04:34:57.16 10.0 undecidable manual PG 350 0.7215 -0.92 0.8
--.ASS.Z. 1999-02-06T04:34:55.66 10.0 negative manual PG 327 0.6105 -0.48 2.6
--.MNS.Z. 1999-02-06T04:34:55.43 10.0 undecidable manual SG 243 0.3552 -1.33 0.2
--.PQ9.Z. 1999-02-06T04:34:55.36 10.0 undecidable manual PG 157 0.555 0.12 1.6
--.NRCA.Z. 1999-02-06T04:34:54.42 10.0 undecidable manual SG 1 0.2886 0.1 0.7
--.AQU.Z. 1999-02-06T04:34:53.97 10.0 undecidable manual SG 131 0.2886 -0.42 0.6
--.MNS.Z. 1999-02-06T04:34:51.33 10.0 positive manual PG 243 0.3552 0.35 3
--.NRCA.Z. 1999-02-06T04:34:49.56 10.0 undecidable manual PG 1 0.2886 -0.01 1.7
--.AQU.Z. 1999-02-06T04:34:48.72 10.0 undecidable manual PG 131 0.2886 -0.89 0.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download