Earthquake with magnitude of Md 2.7 on date 08-04-1987 and time 10:38:48 (Italy) in region 5 km NE Cerreto d'Esi (AN)

A magnitude Md 2.7 earthquake occured in region: 5 km NE Cerreto d'Esi (AN), on

  • 08-04-1987 08:38:48 (UTC)
  • 08-04-1987 10:38:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.36, 13.02 at 0 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
Cerreto d'Esi AN 5 3817 3817
Poggio San Vicino MC 5 246 4063
Fabriano AN 10 31480 35543
Apiro MC 10 2280 37823
Serra San Quirico AN 10 2850 40673
Genga AN 11 1797 42470
Matelica MC 11 9981 52451
Cupramontana AN 13 4756 57207
Mergo AN 13 1037 58244
Esanatoglia MC 13 2034 60278
Gagliole MC 14 620 60898
Rosora AN 14 1985 62883
Maiolati Spontini AN 16 6248 69131
Sassoferrato AN 16 7285 76416
Staffolo AN 16 2253 78669
Castelplanio AN 16 3540 82209
Cingoli MC 16 10352 92561
San Paolo di Jesi AN 17 933 93494
Castelraimondo MC 17 4587 98081
Monte Roberto AN 17 3061 101142
Arcevia AN 17 4612 105754
Poggio San Marcello AN 18 693 106447
Castelbellino AN 18 4947 111394
Montecarotto AN 19 1987 113381
San Severino Marche MC 19 12726 126107

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km SW of Ancona (100861 inhabitants)
52 Km NE of Foligno (57155 inhabitants)
54 Km S of Fano (60888 inhabitants)
58 Km E of Perugia (166134 inhabitants)
62 Km S of Pesaro (94582 inhabitants)
86 Km SE of Rimini (147750 inhabitants)
93 Km E of Arezzo (99543 inhabitants)
94 Km NE of Terni (111501 inhabitants)
96 Km NW of Teramo (54892 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 2.7 1987-04-08
08:38:48
43.36 13.02 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 44389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-04-08 08:38:48 ± 0.203
Latitude 43.36 ± 0.01
Longitude 13.02 ± 0.02
Depth (km) 0 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 44389

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) 1721.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.00963
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 44389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:43:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PGD.Z. 1987-04-08T08:39:10.00 10.0 undecidable manual PG? 299 0.0096 -0.48 0.4
--.AM8.Z. 1987-04-08T08:39:06.61 10.0 undecidable manual SG 65 0.0041 0.39 0.7
--.CRE.Z. 1987-04-08T08:39:06.50 10.0 undecidable manual PG 288 0.0073 0.73 0.8
--.ASS.Z. 1987-04-08T08:39:04.00 10.0 undecidable manual SG 222 0.0036 0.2 0.9
--.AM8.Z. 1987-04-08T08:38:57.90 10.0 undecidable manual PG 65 0.0041 -0.79 1
--.ASS.Z. 1987-04-08T08:38:56.50 10.0 undecidable manual PG 222 0.0036 -0.8 0.9
--.CM8.Z. 1987-04-08T08:38:56.59 10.0 undecidable manual SG 151 0.0016 0.97 0.2
--.ARV.Z. 1987-04-08T08:38:55.00 10.0 undecidable manual SG 338 0.0013 0.78 0.5
--.CM8.Z. 1987-04-08T08:38:52.74 10.0 undecidable manual PG 151 0.0016 0.17 2.2
--.ARV.Z. 1987-04-08T08:38:51.70 10.0 undecidable manual PG 338 0.0013 -0.07 2.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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