Earthquake with magnitude of Md 2.1 on date 24-04-1989 and time 17:31:27 (Italy) in region 2 km W Caldarola (MC)

A magnitude Md 2.1 earthquake occured in region: 2 km W Caldarola (MC), on

  • 24-04-1989 15:31:27 (UTC)
  • 24-04-1989 17:31:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1370, 13.1970 at 11 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
Caldarola MC 3 1823 1823
Belforte del Chienti MC 5 1886 3709
Serrapetrona MC 5 966 4675
Camporotondo di Fiastrone MC 6 563 5238
Cessapalombo MC 6 512 5750
San Ginesio MC 10 3498 9248
Camerino MC 10 6974 16222
San Severino Marche MC 10 12726 28948
Tolentino MC 11 20069 49017
Fiastra MC 12 559 49576
Acquacanina MC 12 121 49697
Pievebovigliana MC 12 866 50563
Colmurano MC 13 1263 51826
Muccia MC 14 915 52741
Gualdo MC 14 815 53556
Ripe San Ginesio MC 14 852 54408
Castelraimondo MC 14 4587 58995
Fiordimonte MC 14 202 59197
Sarnano MC 14 3264 62461
Gagliole MC 16 620 63081
Pieve Torina MC 16 1458 64539
Bolognola MC 16 142 64681
Urbisaglia MC 16 2628 67309
Sant'Angelo in Pontano MC 17 1436 68745
Pioraco MC 18 1134 69879
Loro Piceno MC 18 2401 72280
Pollenza MC 19 6618 78898

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km E of Foligno (57155 inhabitants)
60 Km SW of Ancona (100861 inhabitants)
66 Km E of Perugia (166134 inhabitants)
67 Km NW of Teramo (54892 inhabitants)
78 Km NE of Terni (111501 inhabitants)
80 Km S of Fano (60888 inhabitants)
89 Km N of L'Aquila (69753 inhabitants)
89 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
Bulletin
Rev1000
Md 2.1 1989-04-24
15:31:27
43.137 13.197 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 90459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-04-24 15:31:27 ± 0.183
Latitude 43.1370 ± 0.0085
Longitude 13.1970 ± 0.0257
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 90459

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) 2290.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00453
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 90459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:24:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AM8.Z. 1989-04-24T15:31:46.00 10.0 undecidable manual SG 35 0.4995 0.45 0.2
--.ALP.Z. 1989-04-24T15:31:43.60 10.0 undecidable manual SG 142 0.444 -0.05 0.7
--.ARV.Z. 1989-04-24T15:31:42.58 10.0 undecidable manual SG 333 0.3996 0.24 0.4
--.AM8.Z. 1989-04-24T15:31:37.20 10.0 undecidable manual PG 35 0.4995 -0.68 0.1
--.ALP.Z. 1989-04-24T15:31:36.50 10.0 undecidable manual PG 142 0.444 -0.28 0.8
--.ARV.Z. 1989-04-24T15:31:35.75 10.0 undecidable manual PG 333 0.3996 -0.27 0.9
--.SS8.Z. 1989-04-24T15:31:33.80 10.0 undecidable manual SG 169 0.1221 0.18 0.8
--.SS8.Z. 1989-04-24T15:31:31.10 10.0 undecidable manual PG 169 0.1221 0.12 2.8
--.CM8.Z. 1989-04-24T15:31:31.70 10.0 undecidable manual SG 326 0.0666 -0.27 0.6
--.CM8.Z. 1989-04-24T15:31:30.20 10.0 undecidable manual PG 326 0.0666 0.17 2.6
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