Earthquake with magnitude of Md 2.1 on date 24-03-1998 and time 20:52:58 (Italy) in region 8 km SW Monte Cavallo (MC)

A magnitude Md 2.1 earthquake occured in region: 8 km SW Monte Cavallo (MC), on

  • 24-03-1998 19:52:58 (UTC)
  • 24-03-1998 20:52:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9610, 12.9220 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
Monte Cavallo MC 8 145 145
Sellano PG 8 1079 1224
Serravalle di Chienti MC 13 1070 2294
Preci PG 13 724 3018
Visso MC 14 1107 4125
Pieve Torina MC 14 1458 5583
Cerreto di Spoleto PG 16 1075 6658
Fiordimonte MC 16 202 6860
Trevi PG 17 8469 15329
Muccia MC 17 915 16244
Pievebovigliana MC 18 866 17110
Valtopina PG 18 1398 18508
Foligno PG 18 57155 75663
Ussita MC 18 444 76107
Campello sul Clitunno PG 20 2442 78549
Nocera Umbra PG 20 5839 84388

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
72 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
99 Km S of Fano (60888 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 2.1 1998-03-24
19:52:58
42.961 12.922 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 328209
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-03-24 19:52:58 ± 0.111
Latitude 42.9610 ± 0.0080
Longitude 12.9220 ± 0.0113
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 328209

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) 1277.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00478
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 328209
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:07:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1998-03-24T19:53:18.41 10.0 undecidable manual SG 1 0.5328 0.07 0.3
--.ARV.Z. 1998-03-24T19:53:09.70 10.0 undecidable manual PG 1 0.5328 -0.76 0.1
--.SNTG.Z. 1998-03-24T19:53:09.97 10.0 undecidable manual SG 2 0.2886 0.32 0.2
--.ASS.Z. 1998-03-24T19:53:06.95 10.0 undecidable manual SG 297 0.2109 0.05 0.6
--.NRCA.Z. 1998-03-24T19:53:05.87 10.0 undecidable manual SG 132 0.1887 0.16 0.5
--.SNTG.Z. 1998-03-24T19:53:04.79 10.0 undecidable manual PG 2 0.2886 -0.02 1.5
--.ASS.Z. 1998-03-24T19:53:03.24 10.0 undecidable manual PG 297 0.2109 0.02 1.6
--.NRCA.Z. 1998-03-24T19:53:02.51 10.0 negative manual PG 132 0.1887 -0.02 3.2
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