Earthquake with magnitude of Md 2.3 on date 21-04-1985 and time 16:12:01 (UTC) in region 4 km SE Camerino (MC)

A magnitude Md 2.3 earthquake occured in region: 4 km SE Camerino (MC), on

  • 21-04-1985 16:12:01 (UTC)
  • 21-04-1985 18:12:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.11, 13.09 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
Camerino MC 4 6974 6974
Muccia MC 5 915 7889
Pievebovigliana MC 5 866 8755
Pieve Torina MC 8 1458 10213
Fiordimonte MC 8 202 10415
Fiastra MC 10 559 10974
Acquacanina MC 11 121 11095
Serrapetrona MC 11 966 12061
Pioraco MC 12 1134 13195
Serravalle di Chienti MC 12 1070 14265
Caldarola MC 12 1823 16088
Castelraimondo MC 12 4587 20675
Sefro MC 12 422 21097
Belforte del Chienti MC 14 1886 22983
Cessapalombo MC 14 512 23495
Monte Cavallo MC 14 145 23640
Camporotondo di Fiastrone MC 15 563 24203
Gagliole MC 15 620 24823
San Severino Marche MC 15 12726 37549
Fiuminata MC 16 1402 38951
Bolognola MC 17 142 39093
Matelica MC 18 9981 49074
Ussita MC 19 444 49518
San Ginesio MC 19 3498 53016
Sarnano MC 19 3264 56280
Visso MC 20 1107 57387
Tolentino MC 20 20069 77456
Esanatoglia MC 20 2034 79490

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
57 Km E of Perugia (166134 inhabitants)
67 Km SW of Ancona (100861 inhabitants)
71 Km NE of Terni (111501 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
82 Km S of Fano (60888 inhabitants)
88 Km N of L'Aquila (69753 inhabitants)
91 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 1985-04-21
16:12:01
43.11 13.09 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 5199
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-21 16:12:01 ± 0.158
Latitude 43.11 ± 0.01
Longitude 13.09 ± 0.02
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 5199

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) 2022.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00696
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 5199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PO9.Z. 1985-04-21T16:12:21.00 10.0 undecidable manual SG 191 0.0049 -0.3 0.4
--.ALP.Z. 1985-04-21T16:12:19.60 10.0 undecidable manual SG 132 0.0043 0.38 0.5
--.MNS.Z. 1985-04-21T16:12:17.00 10.0 undecidable manual PG 202 0.007 -0.5 0.5
--.AR1.Z. 1985-04-21T16:12:17.00 10.0 undecidable manual SG 344 0.0036 0.13 0.6
--.AS1.Z. 1985-04-21T16:12:15.50 10.0 undecidable manual SG 262 0.0028 1.3 0
--.PO9.Z. 1985-04-21T16:12:13.00 10.0 undecidable manual PG 191 0.0049 -0.08 1.4
--.ALP.Z. 1985-04-21T16:12:12.10 10.0 undecidable manual PG 132 0.0043 0.22 1.3
--.AR1.Z. 1985-04-21T16:12:10.00 10.0 undecidable manual PG 344 0.0036 -0.52 0.7
--.AS1.Z. 1985-04-21T16:12:09.00 10.0 undecidable manual PG 262 0.0028 0.02 1.6
--.CM2.Z. 1985-04-21T16:12:06.90 10.0 undecidable manual SG 24 0.0008 0.18 0.9
--.CM2.Z. 1985-04-21T16:12:04.70 10.0 undecidable manual PG 24 0.0008 0.04 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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