Earthquake with magnitude of Md 2.3 on date 07-11-1987 and time 15:16:49 (UTC) in region 3 km NW Sarnano (MC)

A magnitude Md 2.3 earthquake occured in region: 3 km NW Sarnano (MC), on

  • 07-11-1987 15:16:49 (UTC)
  • 07-11-1987 16:16:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.05, 13.27 at 10 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
Sarnano MC 3 3264 3264
Gualdo MC 6 815 4079
Cessapalombo MC 7 512 4591
Bolognola MC 7 142 4733
San Ginesio MC 8 3498 8231
Acquacanina MC 8 121 8352
Camporotondo di Fiastrone MC 9 563 8915
Fiastra MC 9 559 9474
Caldarola MC 10 1823 11297
Amandola FM 11 3629 14926
Sant'Angelo in Pontano MC 12 1436 16362
Penna San Giovanni MC 13 1108 17470
Belforte del Chienti MC 13 1886 19356
Ripe San Ginesio MC 13 852 20208
Montefortino FM 13 1178 21386
Monte San Martino MC 14 765 22151
Colmurano MC 15 1263 23414
Fiordimonte MC 15 202 23616
Pievebovigliana MC 15 866 24482
Smerillo FM 15 365 24847
Serrapetrona MC 15 966 25813
Comunanza AP 16 3166 28979
Ussita MC 16 444 29423
Montefalcone Appennino FM 17 424 29847
Montemonaco AP 18 604 30451
Loro Piceno MC 18 2401 32852
Tolentino MC 18 20069 52921
Pieve Torina MC 18 1458 54379
Falerone FM 18 3337 57716
Urbisaglia MC 19 2628 60344
Muccia MC 19 915 61259
Servigliano FM 19 2336 63595
Montappone FM 19 1682 65277
Camerino MC 19 6974 72251
Santa Vittoria in Matenano FM 19 1330 73581
Monte Vidon Corrado FM 19 731 74312
Visso MC 20 1107 75419
Castelsantangelo sul Nera MC 20 281 75700

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
66 Km SW of Ancona (100861 inhabitants)
72 Km E of Perugia (166134 inhabitants)
74 Km NE of Terni (111501 inhabitants)
79 Km N of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
94 Km NW of Montesilvano (53738 inhabitants)
100 Km S of Pesaro (94582 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 2.3
ML-VAX 2.0
1987-11-07
15:16:49
43.05 13.27 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 58219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-11-07 15:16:49 ± 0.166
Latitude 43.05 ± 0.01
Longitude 13.27 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 58219

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) 1770.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01255
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 58219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:55:44

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 58219
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
--.MNS.Z. 1987-11-07T15:17:16.90 10.0 undecidable manual SG 213 0.0071 -0.32 0.4
--.SDI.Z. 1987-11-07T15:17:15.00 10.0 undecidable manual PN 163 0.0125 0.73 0.4
--.AQU.Z. 1987-11-07T15:17:14.58 10.0 undecidable manual SG 171 0.0063 1.06 0.1
--.AM8.Z. 1987-11-07T15:17:08.26 10.0 undecidable manual SG 25 0.0049 -0.4 0.8
--.ARV.Z. 1987-11-07T15:17:06.75 10.0 undecidable manual SG 332 0.0045 -0.4 0.5
--.ASS.Z. 1987-11-07T15:17:05.59 10.0 undecidable manual SG 271 0.004 0.22 0.6
--.MNS.Z. 1987-11-07T15:17:04.25 10.0 undecidable manual PG 213 0.0071 -0.57 0.8
--.AQU.Z. 1987-11-07T15:17:02.58 10.0 undecidable manual PG 171 0.0063 -0.58 0.9
--.ALP.Z. 1987-11-07T15:17:02.42 10.0 undecidable manual SG 140 0.0031 0.33 0.8
--.MC8.Z. 1987-11-07T15:17:00.67 10.0 undecidable manual SG 24 0.0023 1.23 0.1
--.AM8.Z. 1987-11-07T15:16:59.28 10.0 undecidable manual PG 25 0.0049 -1.07 0.8
--.ASS.Z. 1987-11-07T15:16:58.39 10.0 undecidable manual PG 271 0.004 -0.06 1.5
--.ARV.Z. 1987-11-07T15:16:58.90 10.0 undecidable manual PG 332 0.0045 -0.58 1
--.CM8.Z. 1987-11-07T15:16:57.63 10.0 undecidable manual SG 327 0.0015 1.27 0.2
--.ALP.Z. 1987-11-07T15:16:56.65 10.0 positive manual PG 140 0.0031 0.09 3
--.MC8.Z. 1987-11-07T15:16:55.18 10.0 undecidable manual PG 24 0.0023 0.15 3
--.CM8.Z. 1987-11-07T15:16:53.79 10.0 undecidable manual PG 327 0.0015 0.54 2.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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