Earthquake with magnitude of Md 2.2 on date 10-05-1987 and time 04:29:44 (Italy) in region 6 km W Fabriano (AN)

A magnitude Md 2.2 earthquake occured in region: 6 km W Fabriano (AN), on

  • 10-05-1987 02:29:44 (UTC)
  • 10-05-1987 04:29:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3610, 12.8360 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
Fabriano AN 6 31480 31480
Sigillo PG 8 2404 33884
Sassoferrato AN 9 7285 41169
Fossato di Vico PG 9 2840 44009
Costacciaro PG 10 1216 45225
Genga AN 11 1797 47022
Cerreto d'Esi AN 13 3817 50839
Scheggia e Pascelupo PG 14 1393 52232
Gualdo Tadino PG 15 15208 67440
Esanatoglia MC 15 2034 69474
Serra Sant'Abbondio PU 15 1027 70501
Serra San Quirico AN 18 2850 73351
Arcevia AN 18 4612 77963
Matelica MC 18 9981 87944
Frontone PU 19 1300 89244
Poggio San Vicino MC 20 246 89490

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NE of Perugia (166134 inhabitants)
46 Km N of Foligno (57155 inhabitants)
56 Km S of Fano (60888 inhabitants)
62 Km S of Pesaro (94582 inhabitants)
62 Km W of Ancona (100861 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
81 Km S of Rimini (147750 inhabitants)
90 Km N of Terni (111501 inhabitants)
99 Km SE of Cesena (96758 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 2.2 1987-05-10
02:29:44
43.361 12.836 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 46699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-10 02:29:44 ± 0.707
Latitude 43.3610 ± 0.0377
Longitude 12.8360 ± 0.0211
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 46699

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) 4526.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 282
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
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) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.00882
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 46699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:45:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1987-05-10T02:30:04.50 10.0 undecidable manual PG 186 0.9768 0.71 0.3
--.ASS.Z. 1987-05-10T02:29:56.50 10.0 undecidable manual SG 204 0.3219 -0.39 0.7
--.CM8.Z. 1987-05-10T02:29:55.54 10.0 undecidable manual SG 126 0.2664 0.2 0.7
--.ASS.Z. 1987-05-10T02:29:51.50 10.0 undecidable manual PG 204 0.3219 -0.15 1.8
--.CM8.Z. 1987-05-10T02:29:50.43 10.0 undecidable manual PG 126 0.2664 -0.32 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download