Earthquake with magnitude of Md 2.4 on date 25-03-1998 and time 05:56:47 (Italy) in region 6 km E Nocera Umbra (PG)

A magnitude Md 2.4 earthquake occured in region: 6 km E Nocera Umbra (PG), on

  • 25-03-1998 04:56:47 (UTC)
  • 25-03-1998 05:56:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0860, 12.8610 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
Nocera Umbra PG 6 5839 5839
Serravalle di Chienti MC 8 1070 6909
Valtopina PG 9 1398 8307
Sefro MC 10 422 8729
Fiuminata MC 13 1402 10131
Pioraco MC 15 1134 11265
Muccia MC 15 915 12180
Monte Cavallo MC 15 145 12325
Pieve Torina MC 16 1458 13783
Gualdo Tadino PG 17 15208 28991
Camerino MC 18 6974 35965
Pievebovigliana MC 18 866 36831
Spello PG 19 8645 45476
Foligno PG 19 57155 102631
Fiordimonte MC 19 202 102833
Esanatoglia MC 20 2034 104867
Assisi PG 20 28299 133166

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
61 Km N of Terni (111501 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
84 Km NW of Teramo (54892 inhabitants)
85 Km S of Fano (60888 inhabitants)
90 Km E of Arezzo (99543 inhabitants)
92 Km S of Pesaro (94582 inhabitants)
93 Km NW of L'Aquila (69753 inhabitants)
97 Km NE of Viterbo (67173 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 1.7
1998-03-25
04:56:47
43.086 12.861 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 328269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-03-25 04:56:47 ± 0.18
Latitude 43.0860 ± 0.0089
Longitude 12.8610 ± 0.0167
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 328269

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) 1679.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00639
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 328269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:07:41

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 328269
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
--.MNS.Z. 1998-03-25T04:57:12.92 10.0 undecidable manual SG 190 0.7104 -0.27 0.5
--.FB9.Z. 1998-03-25T04:57:08.88 10.0 undecidable manual SG 354 0.5994 -0.99 0.1
--.ARV.Z. 1998-03-25T04:57:03.34 10.0 undecidable manual SG 8 0.4107 -0.27 0.6
--.MNS.Z. 1998-03-25T04:57:01.35 10.0 undecidable manual PG 190 0.7104 -0.96 0.3
--.NRCA.Z. 1998-03-25T04:57:00.00 10.0 undecidable manual SG 143 0.3108 0.41 0.5
--.FB9.Z. 1998-03-25T04:56:59.87 10.0 undecidable manual PG 354 0.5994 -0.52 0.8
--.ARV.Z. 1998-03-25T04:56:56.38 10.0 positive manual PG 8 0.4107 -0.39 2.5
--.SNTG.Z. 1998-03-25T04:56:55.46 10.0 undecidable manual SG 18 0.1665 0.93 0.2
--.NRCA.Z. 1998-03-25T04:56:54.55 10.0 undecidable manual PG 143 0.3108 0.1 1.6
--.ASS.Z. 1998-03-25T04:56:54.15 10.0 undecidable manual SG 261 0.1554 0.52 0.3
--.SNTG.Z. 1998-03-25T04:56:52.21 10.0 positive manual PG 18 0.1665 0.68 1.7
--.ASS.Z. 1998-03-25T04:56:51.23 10.0 positive manual PG 261 0.1554 0.22 2.9
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