Earthquake with magnitude of Md 2.0 on date 12-12-1987 and time 11:48:33 (UTC) in region 4 km SW Cingoli (MC)

A magnitude Md 2.0 earthquake occured in region: 4 km SW Cingoli (MC), on

  • 12-12-1987 11:48:33 (UTC)
  • 12-12-1987 12:48:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.35, 13.18 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
Cingoli MC 4 10352 10352
Apiro MC 6 2280 12632
Poggio San Vicino MC 9 246 12878
Staffolo AN 10 2253 15131
Treia MC 12 9403 24534
San Paolo di Jesi AN 12 933 25467
Cupramontana AN 12 4756 30223
San Severino Marche MC 13 12726 42949
Appignano MC 14 4213 47162
Gagliole MC 15 620 47782
Maiolati Spontini AN 15 6248 54030
Monte Roberto AN 15 3061 57091
Cerreto d'Esi AN 16 3817 60908
Castelbellino AN 16 4947 65855
Pollenza MC 16 6618 72473
Matelica MC 17 9981 82454
Filottrano AN 17 9499 91953
Serra San Quirico AN 17 2850 94803
Tolentino MC 18 20069 114872
Rosora AN 18 1985 116857
Mergo AN 18 1037 117894
Castelraimondo MC 18 4587 122481
Castelplanio AN 18 3540 126021
Serrapetrona MC 19 966 126987
Santa Maria Nuova AN 20 4179 131166

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Ancona (100861 inhabitants)
57 Km S of Fano (60888 inhabitants)
58 Km NE of Foligno (57155 inhabitants)
66 Km SE of Pesaro (94582 inhabitants)
69 Km E of Perugia (166134 inhabitants)
88 Km NW of Teramo (54892 inhabitants)
94 Km SE of Rimini (147750 inhabitants)
97 Km NE of Terni (111501 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 2.0
ML-VAX 1.6
1987-12-12
11:48:33
43.35 13.18 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 59549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-12-12 11:48:33 ± 0.24
Latitude 43.35 ± 0.01
Longitude 13.18 ± 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 59549

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) 2584.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00429
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 59549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:56:53

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 59549
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
--.ASS.Z. 1987-12-12T11:48:51.41 10.0 undecidable manual SG 233 0.0043 0.95 0.1
--.AM8.Z. 1987-12-12T11:48:47.73 10.0 undecidable manual SG 56 0.0032 0.85 0.2
--.ASS.Z. 1987-12-12T11:48:42.82 10.0 undecidable manual PG 233 0.0043 -0.35 1.4
--.ARV.Z. 1987-12-12T11:48:42.73 10.0 undecidable manual SG? 311 0.002 0.28 0
--.AM8.Z. 1987-12-12T11:48:40.66 10.0 undecidable manual PG 56 0.0032 -0.44 1.4
--.CM8.Z. 1987-12-12T11:48:40.48 10.0 undecidable manual SG 189 0.0014 0.39 0.7
--.ARV.Z. 1987-12-12T11:48:38.53 10.0 undecidable manual PG 311 0.002 -0.01 2.2
--.CM8.Z. 1987-12-12T11:48:36.56 10.0 undecidable manual PG 189 0.0014 -0.62 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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