Earthquake with magnitude of Md 2.5 on date 09-02-1999 and time 01:03:39 (Italy) in region 3 km SE Poggiodomo (PG)

A magnitude Md 2.5 earthquake occured in region: 3 km SE Poggiodomo (PG), on

  • 09-02-1999 00:03:39 (UTC)
  • 09-02-1999 01:03:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7, 12.96 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
Poggiodomo PG 3 117 117
Cascia PG 5 3217 3334
Monteleone di Spoleto PG 5 599 3933
Scheggino PG 11 461 4394
Sant'Anatolia di Narco PG 11 564 4958
Vallo di Nera PG 12 364 5322
Cerreto di Spoleto PG 14 1075 6397
Leonessa RI 15 2435 8832
Norcia PG 15 4957 13789
Polino TR 16 233 14022
Ferentillo TR 16 1913 15935
Cittareale RI 18 482 16417
Spoleto PG 19 38218 54635
Montefranco TR 19 1276 55911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Terni (111501 inhabitants)
36 Km SE of Foligno (57155 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
61 Km W of Teramo (54892 inhabitants)
66 Km SE of Perugia (166134 inhabitants)
77 Km E of Viterbo (67173 inhabitants)
80 Km N of Guidonia Montecelio (88673 inhabitants)
83 Km N of Tivoli (56533 inhabitants)
98 Km NE of Roma (2864731 inhabitants)
99 Km W of Montesilvano (53738 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 2.5
ML-VAX 1.5
1999-02-09
00:03:39
42.7 12.96 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 359079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-02-09 00:03:39 ± 0.163
Latitude 42.70 ± 0.01
Longitude 12.96 ± 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 359079

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) 1773.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00899
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 359079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:36:41

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 359079
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 Takeoff_angle Residual Weight
--.PQ9.Z. 1999-02-09T00:04:06.42 10.0 undecidable manual SG 154 0.0067 1.41 0
--.SNTG.Z. 1999-02-09T00:03:59.60 10.0 undecidable manual SG 358 0.005 0.07 0.8
--.FB9.Z. 1999-02-09T00:03:59.40 10.0 undecidable manual PG 352 0.009 0.54 0.8
--.PQ9.Z. 1999-02-09T00:03:56.86 10.0 undecidable manual PG! 154 0.0067 2.79 0
--.ASS.Z. 1999-02-09T00:03:55.50 10.0 undecidable manual SG 328 0.0039 0.6 0.4
--.AQU.Z. 1999-02-09T00:03:55.77 10.0 undecidable manual SG 136 0.0042 -0.35 0.7
--.MNS.Z. 1999-02-09T00:03:52.61 10.0 undecidable manual SG 214 0.0033 -0.45 0.6
--.SNTG.Z. 1999-02-09T00:03:50.50 10.0 undecidable manual PG 358 0.005 -0.09 2.1
--.AQU.Z. 1999-02-09T00:03:49.11 10.0 undecidable manual PG 136 0.0042 0.17 2.1
--.ASS.Z. 1999-02-09T00:03:48.19 10.0 undecidable manual PG 328 0.0039 -0.05 2.2
--.NRCA.Z. 1999-02-09T00:03:46.21 10.0 undecidable manual SG 38 0.0015 -0.47 0.6
--.MNS.Z. 1999-02-09T00:03:46.72 10.0 undecidable manual PG 214 0.0033 -0.45 1.5
--.NRCA.Z. 1999-02-09T00:03:42.95 10.0 undecidable manual PG 38 0.0015 -0.54 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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