Earthquake with magnitude of Md 3.1 on date 02-03-1998 and time 02:58:13 (Italy) in region 7 km SW Folignano (AP)

A magnitude Md 3.1 earthquake occured in region: 7 km SW Folignano (AP), on

  • 02-03-1998 01:58:13 (UTC)
  • 02-03-1998 02:58:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.56 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
Folignano AP 7 9241 9241
Ascoli Piceno AP 7 49407 58648
Valle Castellana TE 8 977 59625
Civitella del Tronto TE 9 5116 64741
Roccafluvione AP 11 2010 66751
Maltignano AP 11 2401 69152
Venarotta AP 12 2066 71218
Rocca Santa Maria TE 12 537 71755
Campli TE 12 7209 78964
Acquasanta Terme AP 13 2916 81880
Sant'Egidio alla Vibrata TE 13 9811 91691
Appignano del Tronto AP 15 1785 93476
Palmiano AP 15 196 93672
Castel di Lama AP 15 8634 102306
Ancarano TE 15 1857 104163
Torricella Sicura TE 17 2641 106804
Castignano AP 17 2796 109600
Torano Nuovo TE 18 1611 111211
Colli del Tronto AP 18 3668 114879
Castorano AP 18 2380 117259
Rotella AP 18 906 118165
Teramo TE 19 54892 173057
Offida AP 19 5058 178115
Cortino TE 19 656 178771
Montegallo AP 20 523 179294
Sant'Omero TE 20 5243 184537
Force AP 20 1354 185891

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Teramo (54892 inhabitants)
51 Km N of L'Aquila (69753 inhabitants)
57 Km NW of Montesilvano (53738 inhabitants)
64 Km NW of Pescara (121014 inhabitants)
70 Km NW of Chieti (51815 inhabitants)
72 Km E of Foligno (57155 inhabitants)
79 Km E of Terni (111501 inhabitants)
92 Km S of Ancona (100861 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 3.1
ML-VAX 2.3
1998-03-02
01:58:13
42.79 13.56 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 324149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-03-02 01:58:13 ± 0.401
Latitude 42.79 ± 0.02
Longitude 13.56 ± 0.05
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 324149

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) 4651.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00405
Epicentral distance of station farthest from the epicenter (degree) 0.03173
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 8
Type of magnitude Md
Reference to an origin 324149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:03:54

ML:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 10
Type of magnitude ML
Reference to an origin 324149
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
--.CTI.Z. 1998-03-02T01:59:08.50 10.0 undecidable manual PN 337 0.0317 -0.33 0.9
--.BDI.Z. 1998-03-02T01:58:55.69 10.0 undecidable manual PN 301 0.0224 0.98 0.7
--.ZC9.Z. 1998-03-02T01:58:54.50 10.0 undecidable manual PN 310 0.0219 0.66 1
--.PII.Z. 1998-03-02T01:58:54.37 10.0 undecidable manual PN 293 0.0215 1.04 0.7
--.FB9.Z. 1998-03-02T01:58:51.86 10.0 undecidable manual SG 327 0.0096 1.21 0.3
--.CSNT.Z. 1998-03-02T01:58:45.53 10.0 undecidable manual PN 292 0.0161 0.54 1.3
--.SFI.Z. 1998-03-02T01:58:43.50 10.0 undecidable manual PN 312 0.015 0.18 1.5
--.MNS.Z. 1998-03-02T01:58:42.91 10.0 undecidable manual SG 238 0.0069 1.87 0.1
--.RSM.Z. 1998-03-02T01:58:40.94 10.0 undecidable manual PN 324 0.0125 1.41 0.6
--.CRE.Z. 1998-03-02T01:58:40.84 10.0 undecidable manual PN 305 0.0129 0.72 1.3
--.ASS.Z. 1998-03-02T01:58:38.90 10.0 undecidable manual SG 292 0.0064 -0.62 0.6
--.RMP.Z. 1998-03-02T01:58:37.53 10.0 undecidable manual PN 213 0.0104 1.09 1
--.CRVI.Z. 1998-03-02T01:58:37.50 10.0 undecidable manual PN 152 0.0108 0.62 1.5
--.RDP.Z. 1998-03-02T01:58:37.53 10.0 undecidable manual PN 211 0.0108 0.55 1.5
--.FB9.Z. 1998-03-02T01:58:34.68 10.0 undecidable manual PG 327 0.0096 -0.29 1.7
--.SDI.Z. 1998-03-02T01:58:33.82 10.0 undecidable manual PN 170 0.0099 -1.64 0.4
--.AQU.Z. 1998-03-02T01:58:32.86 10.0 undecidable manual SG 195 0.004 1.86 0.1
--.CLF9.Z. 1998-03-02T01:58:32.00 10.0 undecidable manual SG 297 0.0047 -1.21 0.3
--.ARV.Z. 1998-03-02T01:58:30.27 10.0 undecidable manual PG 327 0.0075 -0.48 1.6
--.ASS.Z. 1998-03-02T01:58:28.11 10.0 undecidable manual PG 292 0.0064 -0.44 1.6
--.PQ9.Z. 1998-03-02T01:58:28.70 10.0 undecidable manual PG 188 0.007 -0.95 1.1
--.MNS.Z. 1998-03-02T01:58:28.40 10.0 undecidable manual PG 238 0.0069 -1.38 0.7
--.SNTG.Z. 1998-03-02T01:58:25.58 10.0 undecidable manual PG 315 0.0058 -1.66 0.4
--.CLF9.Z. 1998-03-02T01:58:23.76 10.0 undecidable manual PG 297 0.0047 -1.15 0.9
--.AQU.Z. 1998-03-02T01:58:23.28 10.0 positive manual PG 195 0.004 -0.35 3.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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