Earthquake with magnitude of Md 2.5 on date 07-05-1986 and time 20:52:05 (UTC) in region 5 km NW Milo (CT)

A magnitude Md 2.5 earthquake occured in region: 5 km NW Milo (CT), on

  • 07-05-1986 20:52:05 (UTC)
  • 07-05-1986 22:52:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.75, 15.08 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
Milo CT 5 1087 1087
Sant'Alfio CT 6 1582 2669
Zafferana Etnea CT 7 9517 12186
Santa Venerina CT 9 8592 20778
Giarre CT 10 27659 48437
Mascali CT 10 14282 62719
Piedimonte Etneo CT 11 3963 66682
Riposto CT 11 14838 81520
Linguaglossa CT 11 5403 86923
Fiumefreddo di Sicilia CT 12 9623 96546
Castiglione di Sicilia CT 15 3215 99761
Calatabiano CT 15 5308 105069
Trecastagni CT 15 10910 115979
Pedara CT 15 14102 130081
Viagrande CT 16 8563 138644
Nicolosi CT 16 7463 146107
Moio Alcantara ME 16 717 146824
Aci Sant'Antonio CT 17 17984 164808
Gaggi ME 17 3184 167992
Francavilla di Sicilia ME 17 3945 171937
Acireale CT 17 52622 224559
Aci Bonaccorsi CT 17 3524 228083
Aci Catena CT 18 29851 257934
Motta Camastra ME 18 845 258779
Randazzo CT 18 10900 269679
Ragalna CT 19 3924 273603
Malvagna ME 19 733 274336
San Giovanni la Punta CT 20 23060 297396
Valverde CT 20 7840 305236
Tremestieri Etneo CT 20 20589 325825
Giardini-Naxos ME 20 9415 335240

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Acireale (52622 inhabitants)
28 Km N of Catania (314555 inhabitants)
63 Km SW of Reggio di Calabria (183035 inhabitants)
64 Km SW of Messina (238439 inhabitants)
79 Km N of Siracusa (122291 inhabitants)
94 Km E of Caltanissetta (63360 inhabitants)
97 Km NE of Ragusa (73313 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 2.5 1986-05-07
20:52:05
37.75 15.08 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 26699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-07 20:52:05 ± 0.315
Latitude 37.75 ± 0.02
Longitude 15.08 ± 0.05
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 26699

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) 4501.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 195
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00631
Epicentral distance of station farthest from the epicenter (degree) 0.02007
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 26699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:28:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CSI.Z. 1986-05-07T20:52:42.90 10.0 undecidable manual PN 24 0.0201 0.73 0.4
--.CZI.Z. 1986-05-07T20:52:33.90 10.0 undecidable manual PN 28 0.0151 -0.59 0.7
--.PZI.Z. 1986-05-07T20:52:30.00 10.0 undecidable manual SG 188 0.0063 0.03 0.7
--.RI2.Z. 1986-05-07T20:52:29.60 10.0 undecidable manual PN 58 0.0116 0.48 1
--.DR2.Z. 1986-05-07T20:52:26.20 10.0 undecidable manual PN 36 0.01 -0.51 0.9
--.FE2.Z. 1986-05-07T20:52:22.00 10.0 undecidable manual PG 69 0.0075 -0.11 1.7
--.PZI.Z. 1986-05-07T20:52:19.50 10.0 undecidable manual PG 188 0.0063 -0.08 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download