Earthquake with magnitude of Md 2.4 on date 24-07-1998 and time 21:09:28 (Italy) in region 5 km W Monte Cavallo (MC)

A magnitude Md 2.4 earthquake occured in region: 5 km W Monte Cavallo (MC), on

  • 24-07-1998 19:09:28 (UTC)
  • 24-07-1998 21:09:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9930, 12.9420 at 18 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 5 145 145
Serravalle di Chienti MC 9 1070 1215
Pieve Torina MC 11 1458 2673
Sellano PG 12 1079 3752
Fiordimonte MC 13 202 3954
Muccia MC 13 915 4869
Visso MC 14 1107 5976
Pievebovigliana MC 14 866 6842
Preci PG 15 724 7566
Valtopina PG 17 1398 8964
Ussita MC 17 444 9408
Sefro MC 17 422 9830
Nocera Umbra PG 18 5839 15669
Fiastra MC 18 559 16228
Camerino MC 19 6974 23202
Cerreto di Spoleto PG 19 1075 24277
Acquacanina MC 19 121 24398
Foligno PG 20 57155 81553

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
95 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 2.4 1998-07-24
19:09:28
42.993 12.942 18 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 346199
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-07-24 19:09:28 ± 0.21
Latitude 42.9930 ± 0.0056
Longitude 12.9420 ± 0.0150
Depth (km) 18 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 346199

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) 1374.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00567
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 346199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:24:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-07-24T19:09:50.59 10.0 undecidable manual SG 197 0.6327 -0.16 0.4
--.ARV.Z. 1998-07-24T19:09:45.93 10.0 undecidable manual SG 359 0.4995 -0.63 0
--.MNS.Z. 1998-07-24T19:09:41.22 10.0 undecidable manual PG 197 0.6327 -0.01 1.4
--.SNTG.Z. 1998-07-24T19:09:39.00 10.0 undecidable manual SG 359 0.2553 -0.08 0.7
--.ASS.Z. 1998-07-24T19:09:38.27 10.0 undecidable manual SG 287 0.2109 0.3 0.3
--.ARV.Z. 1998-07-24T19:09:38.88 10.0 undecidable manual PG 359 0.4995 0.09 1.5
--.NRCA.Z. 1998-07-24T19:09:37.20 10.0 undecidable manual SG 141 0.1998 -0.41 0.2
--.SNTG.Z. 1998-07-24T19:09:34.61 10.0 positive manual PG 359 0.2553 0.13 3.2
--.ASS.Z. 1998-07-24T19:09:33.66 10.0 undecidable manual PG 287 0.2109 -0.19 1.3
--.NRCA.Z. 1998-07-24T19:09:33.78 10.0 undecidable manual PG 141 0.1998 0.24 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
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