diff --git a/schema/createSchema.sql b/schema/createSchema.sql
index d7ad610..4bf1991 100644
--- a/schema/createSchema.sql
+++ b/schema/createSchema.sql
@@ -7,3 +7,23 @@ CREATE TABLE device_t (
     location varchar(128) NOT NULL,
     active boolean NOT NULL DEFAULT false
 );
+
+CREATE SEQUENCE alarm_event_s START WITH 1 INCREMENT BY 1;
+
+CREATE TABLE alarm_event_t (
+    id integer PRIMARY KEY DEFAULT NEXTVAL('alarm_event_s'),
+    time timestamp without time zone NOT NULL DEFAULT now(),
+    status varchar(32) NOT NULL,
+    info varchar(256) NOT NULL,
+    name varchar(32) NOT NULL
+);
+
+CREATE TABLE mainsfrequency (
+    time timestamp without time zone NOT NULL,
+    host text,
+    location text,
+    freq double precision,
+    valid smallint NOT NULL DEFAULT 1
+);
+
+SELECT create_hypertable('mainsfrequency', 'time');