Earthquake with magnitude of Md 1.9 on date 19-12-1988 and time 19:46:14 (Italy) in region 3 km NE Castelsantangelo sul Nera (MC)

A magnitude Md 1.9 earthquake occured in region: 3 km NE Castelsantangelo sul Nera (MC), on

  • 19-12-1988 18:46:14 (UTC)
  • 19-12-1988 19:46:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.92, 13.16 at 9 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
Castelsantangelo sul Nera MC 3 281 281
Ussita MC 4 444 725
Visso MC 6 1107 1832
Bolognola MC 10 142 1974
Preci PG 11 724 2698
Acquacanina MC 13 121 2819
Fiastra MC 13 559 3378
Montemonaco AP 14 604 3982
Fiordimonte MC 15 202 4184
Montefortino FM 15 1178 5362
Norcia PG 15 4957 10319
Monte Cavallo MC 16 145 10464
Montegallo AP 16 523 10987
Pieve Torina MC 17 1458 12445
Amandola FM 17 3629 16074
Sarnano MC 17 3264 19338
Pievebovigliana MC 17 866 20204
Arquata del Tronto AP 19 1178 21382
Sellano PG 20 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
100 Km NW of Pescara (121014 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 1.9 1988-12-19
18:46:14
42.92 13.16 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 83729
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-12-19 18:46:14 ± 0.163
Latitude 42.92 ± 0.01
Longitude 13.16 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 83729

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) 1410.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
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) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00575
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:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 83729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:18:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1988-12-19T18:46:37.50 10.0 undecidable manual SG 213 0.0057 0.61 0
--.ASS.Z. 1988-12-19T18:46:29.50 10.0 undecidable manual SG 291 0.0036 0.29 0.3
--.MNS.Z. 1988-12-19T18:46:27.00 10.0 undecidable manual PG 213 0.0057 -0.34 0.5
--.ALP.Z. 1988-12-19T18:46:26.50 10.0 undecidable manual SG 114 0.0029 -0.31 0.5
--.CIO.Z. 1988-12-19T18:46:25.00 10.0 undecidable manual SG 357 0.0024 -0.25 0.6
--.ASS.Z. 1988-12-19T18:46:22.60 10.0 undecidable manual PG 291 0.0036 -0.31 0.7
--.ALP.Z. 1988-12-19T18:46:21.80 10.0 undecidable manual PG 114 0.0029 0.27 0.9
--.CIO.Z. 1988-12-19T18:46:20.80 10.0 undecidable manual PG 357 0.0024 0.17 2.5
--.SS8.Z. 1988-12-19T18:46:19.30 10.0 undecidable manual SG 28 0.0009 -0.1 0.9
--.SS8.Z. 1988-12-19T18:46:17.30 10.0 undecidable manual PG 28 0.0009 0.05 3.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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