Earthquake with magnitude of Md 2.5 on date 06-03-1998 and time 02:20:40 (Italy) in region 6 km SW Preci (PG)

A magnitude Md 2.5 earthquake occured in region: 6 km SW Preci (PG), on

  • 06-03-1998 01:20:40 (UTC)
  • 06-03-1998 02:20:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.01 at 6 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
Preci PG 6 724 724
Cerreto di Spoleto PG 7 1075 1799
Norcia PG 8 4957 6756
Sellano PG 9 1079 7835
Cascia PG 12 3217 11052
Vallo di Nera PG 13 364 11416
Visso MC 13 1107 12523
Poggiodomo PG 14 117 12640
Castelsantangelo sul Nera MC 14 281 12921
Ussita MC 17 444 13365
Sant'Anatolia di Narco PG 17 564 13929
Monte Cavallo MC 19 145 14074
Campello sul Clitunno PG 19 2442 16516
Scheggino PG 19 461 16977
Monteleone di Spoleto PG 20 599 17576

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
59 Km SE of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
100 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 1.6
1998-03-06
01:20:40
42.83 13.01 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 324409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-03-06 01:20:40 ± 0.145
Latitude 42.83 ± 0.01
Longitude 13.01 ± 0.02
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 324409

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) 1535.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.01133
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 324409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:04:09

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 324409
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
--.FB9.Z. 1998-03-06T01:21:11.95 10.0 undecidable manual SG 349 0.0079 0.8 0.1
--.PQ9.Z. 1998-03-06T01:21:11.34 10.0 undecidable manual SG 160 0.0077 0.91 0.1
--.SDI.Z. 1998-03-06T01:21:05.10 10.0 undecidable manual PN 151 0.0113 0.67 0.4
--.ARV.Z. 1998-03-06T01:21:04.66 10.0 undecidable manual SG 356 0.006 0.17 0.7
--.MNS.Z. 1998-03-06T01:20:58.78 10.0 undecidable manual SG 208 0.0045 -0.33 0.6
--.PQ9.Z. 1998-03-06T01:20:58.15 10.0 undecidable manual PG 160 0.0077 0.43 1
--.FB9.Z. 1998-03-06T01:20:57.70 10.0 undecidable manual PG 349 0.0079 -0.43 1
--.SNTG.Z. 1998-03-06T01:20:56.30 10.0 undecidable manual SG 353 0.0038 -0.67 0.3
--.ASS.Z. 1998-03-06T01:20:54.11 10.0 undecidable manual SG 312 0.0031 0.14 0.7
--.ARV.Z. 1998-03-06T01:20:54.60 10.0 undecidable manual PG 356 0.006 -0.23 1.5
--.MNS.Z. 1998-03-06T01:20:50.70 10.0 positive manual PG 208 0.0045 -0.48 2.2
--.SNTG.Z. 1998-03-06T01:20:49.37 10.0 undecidable manual PG 353 0.0038 -0.42 1.3
--.CLF9.Z. 1998-03-06T01:20:49.35 10.0 undecidable manual SG 344 0.0019 0.53 0.4
--.ASS.Z. 1998-03-06T01:20:48.69 10.0 undecidable manual PG 312 0.0031 0.48 1.1
--.CLF9.Z. 1998-03-06T01:20:45.56 10.0 undecidable manual PG 344 0.0019 0.32 1.5
--.NRCA.Z. 1998-03-06T01:20:42.24 10.0 positive manual PG 86 0.0006 -0.27 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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