Earthquake with magnitude of Md 4.0 on date 25-06-1998 and time 02:32:51 (Italy) in region 11 km SW Serravalle di Chienti (MC)

A magnitude Md 4.0 earthquake occured in region: 11 km SW Serravalle di Chienti (MC), on

  • 25-06-1998 00:32:51 (UTC)
  • 25-06-1998 02:32:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43, 12.86 at 4 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
Serravalle di Chienti MC 11 1070 1070
Valtopina PG 11 1398 2468
Monte Cavallo MC 12 145 2613
Nocera Umbra PG 13 5839 8452
Foligno PG 14 57155 65607
Sellano PG 14 1079 66686
Spello PG 16 8645 75331
Pieve Torina MC 16 1458 76789
Trevi PG 17 8469 85258
Muccia MC 17 915 86173
Sefro MC 17 422 86595
Fiordimonte MC 19 202 86797
Pievebovigliana MC 19 866 87663

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
52 Km NE of Terni (111501 inhabitants)
79 Km W of Teramo (54892 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
94 Km S of Fano (60888 inhabitants)
95 Km SE of Arezzo (99543 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 4.0
ML-VAX 2.9
1998-06-25
00:32:51
43.01 12.86 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 343919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-06-25 00:32:51 ± 0.226
Latitude 43.01 ± 0.01
Longitude 12.86 ± 0.02
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 343919

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) 1591.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01238
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 11
Type of magnitude Md
Reference to an origin 343919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:22:06

ML:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 343919
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
--.GRFL.Z. 1998-06-25T00:33:17.87 10.0 undecidable manual PN 276 0.0124 0.02 1.2
--.RDP.Z. 1998-06-25T00:33:16.14 10.0 undecidable manual PN 184 0.0113 0.13 1.2
--.RMP.Z. 1998-06-25T00:33:15.43 10.0 undecidable manual PN 185 0.0108 0.13 1.2
--.MNS.Z. 1998-06-25T00:33:15.66 10.0 undecidable manual SG 192 0.0057 0.41 0.4
--.CSNT.Z. 1998-06-25T00:33:15.91 10.0 undecidable manual PN 292 0.0111 0.11 1.2
--.SFI.Z. 1998-06-25T00:33:14.86 10.0 undecidable manual PN 320 0.0104 0.08 1.3
--.RSM.Z. 1998-06-25T00:33:12.19 10.0 undecidable manual PG 342 0.0087 0.58 0.5
--.PQ9.Z. 1998-06-25T00:33:12.70 10.0 undecidable manual PG 157 0.0095 -0.57 0.5
--.ARV.Z. 1998-06-25T00:33:10.99 10.0 undecidable manual SG 6 0.0045 0.15 0.6
--.CRE.Z. 1998-06-25T00:33:09.77 10.0 undecidable manual PG 312 0.0081 -0.61 0.4
--.AQU.Z. 1998-06-25T00:33:07.73 10.0 undecidable manual PG 148 0.0068 -0.03 1.7
--.FB9.Z. 1998-06-25T00:33:06.11 10.0 undecidable manual PG 354 0.0062 -0.3 1.2
--.MNS.Z. 1998-06-25T00:33:05.34 10.0 undecidable manual PG 192 0.0057 -0.05 1.7
--.ARV.Z. 1998-06-25T00:33:02.71 10.0 undecidable manual PG 6 0.0045 -0.13 1.6
--.SNTG.Z. 1998-06-25T00:33:01.00 10.0 undecidable manual SG 12 0.0023 -0.89 0
--.SNTG.Z. 1998-06-25T00:32:58.32 10.0 undecidable manual PG 12 0.0023 0.64 0.4
--.ASS.Z. 1998-06-25T00:32:57.57 10.0 undecidable manual SG 290 0.0015 -0.85 0.1
--.ASS.Z. 1998-06-25T00:32:55.90 10.0 negative manual PG 290 0.0015 0.23 2.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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