Earthquake with magnitude of Md 2.5 on date 12-01-1988 and time 03:06:01 (Italy) in region 3 km SW Visso (MC)

A magnitude Md 2.5 earthquake occured in region: 3 km SW Visso (MC), on

  • 12-01-1988 02:06:01 (UTC)
  • 12-01-1988 03:06:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9040, 13.0730 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
Visso MC 3 1107 1107
Preci PG 4 724 1831
Castelsantangelo sul Nera MC 7 281 2112
Ussita MC 7 444 2556
Monte Cavallo MC 12 145 2701
Sellano PG 12 1079 3780
Norcia PG 12 4957 8737
Fiordimonte MC 15 202 8939
Cerreto di Spoleto PG 16 1075 10014
Pieve Torina MC 16 1458 11472
Bolognola MC 16 142 11614
Fiastra MC 16 559 12173
Acquacanina MC 16 121 12294
Pievebovigliana MC 18 866 13160
Muccia MC 20 915 14075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
60 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
98 Km W of Montesilvano (53738 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 2.5
ML-VAX 1.7
1988-01-12
02:06:01
42.904 13.073 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 60939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-01-12 02:06:01 ± 0.189
Latitude 42.9040 ± 0.0083
Longitude 13.0730 ± 0.0137
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 60939

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) 1450.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01174
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 60939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:58:05

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 60939
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
--.SDI.Z. 1988-01-12T02:06:44.65 10.0 undecidable manual SN 155 1.2987 -0.1 0.4
--.AM8.Z. 1988-01-12T02:06:28.68 10.0 undecidable manual SG 30 0.7437 0.09 0.8
--.SDI.Z. 1988-01-12T02:06:27.63 10.0 negative manual PN 155 1.2987 1.16 0.1
--.ARV.Z. 1988-01-12T02:06:23.33 10.0 undecidable manual SG 351 0.5883 -0.49 0.4
--.MNS.Z. 1988-01-12T02:06:22.69 10.0 undecidable manual SG 209 0.5883 -0.88 0.1
--.MC8.Z. 1988-01-12T02:06:20.53 10.0 undecidable manual SG 32 0.4551 1.13 0.1
--.AM8.Z. 1988-01-12T02:06:17.79 10.0 undecidable manual PG 30 0.7437 0.65 0.6
--.ALP.Z. 1988-01-12T02:06:15.88 10.0 undecidable manual SG 108 0.3774 -0.41 0.6
--.ASS.Z. 1988-01-12T02:06:15.32 10.0 undecidable manual SG 297 0.3441 0.43 0.4
--.MNS.Z. 1988-01-12T02:06:14.17 10.0 positive manual PG 209 0.5883 -0.07 2.9
--.ARV.Z. 1988-01-12T02:06:13.79 10.0 positive manual PG 351 0.5883 -0.59 1.5
--.CM8.Z. 1988-01-12T02:06:12.99 10.0 undecidable manual SG 10 0.2886 0.05 0.9
--.MC8.Z. 1988-01-12T02:06:11.90 10.0 undecidable manual PG 32 0.4551 -0.74 0.5
--.ASS.Z. 1988-01-12T02:06:09.58 10.0 undecidable manual PG 297 0.3441 0.35 1.2
--.ALP.Z. 1988-01-12T02:06:09.93 10.0 positive manual PG 108 0.3774 -0.1 2.8
--.CM8.Z. 1988-01-12T02:06:08.21 10.0 positive manual PG 10 0.2886 0.11 2.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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